{
 "title": "Long chat or new chat? What 30 requests cost in one Claude Code session, with /compact, and in fresh sessions",
 "url": "https://tokensave.app/data/long-chat-vs-new-chat-cost",
 "license": "CC BY 4.0",
 "measured": "2026-10-20",
 "citation": "TokenSave (2026). Long chat or new chat? What 30 requests cost in one Claude Code session, with /compact, and in fresh sessions [Data set]. Zenodo. https://doi.org/10.5281/zenodo.23489464",
 "tool": "Claude Code 2.1.295 (Opus 5.5), claude -p --effort medium --permission-mode acceptEdits, no MCP servers, stream-json",
 "requests": [
  "Make a brick-breaker game that runs in the browser as a single file named index.html in the current folder. It needs 2 levels, a score display and 3 lives, and it must be playable with the keyboard and the mouse. Write the file and finish.",
  "Make the ball red.",
  "Make the paddle 20% wider.",
  "Add a start screen that says \"Press Space to start\".",
  "Show the current level number next to the score.",
  "Make the bricks in each row a different color.",
  "Add a pause when the P key is pressed.",
  "Make the ball speed up a little after every 5 bricks.",
  "Add a third level with a different brick layout.",
  "Show a \"You win\" screen after the last level.",
  "Save the high score in localStorage and show it.",
  "Make some bricks need two hits, and show them darker.",
  "Add a simple sound when the ball hits a brick, using the Web Audio API.",
  "Add a mute button in the top right corner.",
  "Make the game fit the window when it is resized.",
  "Add a short flash effect when a brick breaks.",
  "Give the player an extra life every 1,000 points.",
  "Add a power-up that sometimes drops from a broken brick and makes the paddle wider for 10 seconds.",
  "Show the remaining lives as small hearts instead of a number.",
  "Make the ball start from the paddle and launch when Space or the mouse button is pressed.",
  "Add touch controls so it works on a phone.",
  "Make the background a dark gradient.",
  "Show the time taken to clear each level.",
  "Add a \"Restart\" button on the game-over screen.",
  "Make the paddle slow down slightly near the walls.",
  "Add a combo counter that doubles points for hitting bricks without touching the paddle.",
  "Show a small tutorial line under the start text explaining the controls.",
  "Make the brick layout of level 2 a pyramid.",
  "Add a setting to choose easy or hard mode on the start screen; hard mode makes the ball faster.",
  "Clean up the code: remove anything unused and add short comments to each function."
 ],
 "fresh_prefix": "The game is in index.html in the current folder. ",
 "compactions": [
  {
   "variant": "claude_compact",
   "rep": 1,
   "after_request": 15,
   "cost_usd": 0.1114,
   "input_tokens": 68974,
   "output_tokens": 4300
  },
  {
   "variant": "claude_compact",
   "rep": 2,
   "after_request": 15,
   "cost_usd": 0.1093,
   "input_tokens": 75940,
   "output_tokens": 4239
  }
 ],
 "rows": [
  {
   "variant": "claude_one",
   "rep": 1,
   "request": 1,
   "text": "Make a brick-breaker game that runs in the browser as a single file named index.html in the current folder. It needs 2 levels, a score display and 3 lives, and it must be playable with the keyboard and the mouse. Write the file and finish.",
   "input_tokens": 77132,
   "cache_write_tokens": 25344,
   "cache_read_tokens": 51784,
   "uncached_input_tokens": 4,
   "output_tokens": 5725,
   "cost_usd": 0.3276,
   "model_calls": 2,
   "seconds": 54
  },
  {
   "variant": "claude_one",
   "rep": 1,
   "request": 2,
   "text": "Make the ball red.",
   "input_tokens": 83717,
   "cache_write_tokens": 726,
   "cache_read_tokens": 82987,
   "uncached_input_tokens": 4,
   "output_tokens": 265,
   "cost_usd": 0.0277,
   "model_calls": 2,
   "seconds": 24
  },
  {
   "variant": "claude_one",
   "rep": 1,
   "request": 3,
   "text": "Make the paddle 20% wider.",
   "input_tokens": 84586,
   "cache_write_tokens": 462,
   "cache_read_tokens": 84120,
   "uncached_input_tokens": 4,
   "output_tokens": 327,
   "cost_usd": 0.0271,
   "model_calls": 2,
   "seconds": 15
  },
  {
   "variant": "claude_one",
   "rep": 1,
   "request": 4,
   "text": "Add a start screen that says \"Press Space to start\".",
   "input_tokens": 85676,
   "cache_write_tokens": 634,
   "cache_read_tokens": 85038,
   "uncached_input_tokens": 4,
   "output_tokens": 545,
   "cost_usd": 0.033,
   "model_calls": 2,
   "seconds": 23
  },
  {
   "variant": "claude_one",
   "rep": 1,
   "request": 5,
   "text": "Show the current level number next to the score.",
   "input_tokens": 86912,
   "cache_write_tokens": 567,
   "cache_read_tokens": 86341,
   "uncached_input_tokens": 4,
   "output_tokens": 436,
   "cost_usd": 0.0305,
   "model_calls": 2,
   "seconds": 18
  },
  {
   "variant": "claude_one",
   "rep": 1,
   "request": 6,
   "text": "Make the bricks in each row a different color.",
   "input_tokens": 43814,
   "cache_write_tokens": 154,
   "cache_read_tokens": 43658,
   "uncached_input_tokens": 2,
   "output_tokens": 317,
   "cost_usd": 0.0163,
   "model_calls": 1,
   "seconds": 22
  },
  {
   "variant": "claude_one",
   "rep": 1,
   "request": 7,
   "text": "Add a pause when the P key is pressed.",
   "input_tokens": 44172,
   "cache_write_tokens": 358,
   "cache_read_tokens": 43812,
   "uncached_input_tokens": 2,
   "output_tokens": 159,
   "cost_usd": 0.0148,
   "model_calls": 1,
   "seconds": 20
  },
  {
   "variant": "claude_one",
   "rep": 1,
   "request": 8,
   "text": "Make the ball speed up a little after every 5 bricks.",
   "input_tokens": 90685,
   "cache_write_tokens": 2136,
   "cache_read_tokens": 88545,
   "uncached_input_tokens": 4,
   "output_tokens": 1783,
   "cost_usd": 0.0705,
   "model_calls": 6,
   "seconds": 30
  },
  {
   "variant": "claude_one",
   "rep": 1,
   "request": 9,
   "text": "Add a third level with a different brick layout.",
   "input_tokens": 93895,
   "cache_write_tokens": 947,
   "cache_read_tokens": 92944,
   "uncached_input_tokens": 4,
   "output_tokens": 823,
   "cost_usd": 0.0426,
   "model_calls": 2,
   "seconds": 22
  },
  {
   "variant": "claude_one",
   "rep": 1,
   "request": 10,
   "text": "Show a \"You win\" screen after the last level.",
   "input_tokens": 47590,
   "cache_write_tokens": 335,
   "cache_read_tokens": 47253,
   "uncached_input_tokens": 2,
   "output_tokens": 416,
   "cost_usd": 0.0205,
   "model_calls": 1,
   "seconds": 18
  },
  {
   "variant": "claude_one",
   "rep": 1,
   "request": 11,
   "text": "Save the high score in localStorage and show it.",
   "input_tokens": 98390,
   "cache_write_tokens": 2753,
   "cache_read_tokens": 95633,
   "uncached_input_tokens": 4,
   "output_tokens": 2213,
   "cost_usd": 0.0854,
   "model_calls": 6,
   "seconds": 41
  },
  {
   "variant": "claude_one",
   "rep": 1,
   "request": 12,
   "text": "Make some bricks need two hits, and show them darker.",
   "input_tokens": 102398,
   "cache_write_tokens": 1311,
   "cache_read_tokens": 101083,
   "uncached_input_tokens": 4,
   "output_tokens": 1101,
   "cost_usd": 0.0527,
   "model_calls": 2,
   "seconds": 28
  },
  {
   "variant": "claude_one",
   "rep": 1,
   "request": 13,
   "text": "Add a simple sound when the ball hits a brick, using the Web Audio API.",
   "input_tokens": 105096,
   "cache_write_tokens": 1458,
   "cache_read_tokens": 103634,
   "uncached_input_tokens": 4,
   "output_tokens": 1209,
   "cost_usd": 0.0566,
   "model_calls": 3,
   "seconds": 31
  },
  {
   "variant": "claude_one",
   "rep": 1,
   "request": 14,
   "text": "Add a mute button in the top right corner.",
   "input_tokens": 285528,
   "cache_write_tokens": 7723,
   "cache_read_tokens": 277795,
   "uncached_input_tokens": 10,
   "output_tokens": 5114,
   "cost_usd": 0.2197,
   "model_calls": 12,
   "seconds": 57
  },
  {
   "variant": "claude_one",
   "rep": 1,
   "request": 15,
   "text": "Make the game fit the window when it is resized.",
   "input_tokens": 384849,
   "cache_write_tokens": 4868,
   "cache_read_tokens": 379969,
   "uncached_input_tokens": 12,
   "output_tokens": 3470,
   "cost_usd": 0.1844,
   "model_calls": 9,
   "seconds": 46
  },
  {
   "variant": "claude_one",
   "rep": 1,
   "request": 16,
   "text": "Add a short flash effect when a brick breaks.",
   "input_tokens": 201768,
   "cache_write_tokens": 2381,
   "cache_read_tokens": 199381,
   "uncached_input_tokens": 6,
   "output_tokens": 1822,
   "cost_usd": 0.0954,
   "model_calls": 6,
   "seconds": 43
  },
  {
   "variant": "claude_one",
   "rep": 1,
   "request": 17,
   "text": "Give the player an extra life every 1,000 points.",
   "input_tokens": 279304,
   "cache_write_tokens": 3552,
   "cache_read_tokens": 275744,
   "uncached_input_tokens": 8,
   "output_tokens": 2788,
   "cost_usd": 0.1394,
   "model_calls": 7,
   "seconds": 41
  },
  {
   "variant": "claude_one",
   "rep": 1,
   "request": 18,
   "text": "Add a power-up that sometimes drops from a broken brick and makes the paddle wider for 10 seconds.",
   "input_tokens": 395770,
   "cache_write_tokens": 12737,
   "cache_read_tokens": 383023,
   "uncached_input_tokens": 10,
   "output_tokens": 6835,
   "cost_usd": 0.3152,
   "model_calls": 14,
   "seconds": 80
  },
  {
   "variant": "claude_one",
   "rep": 1,
   "request": 19,
   "text": "Show the remaining lives as small hearts instead of a number.",
   "input_tokens": 350294,
   "cache_write_tokens": 4838,
   "cache_read_tokens": 345448,
   "uncached_input_tokens": 8,
   "output_tokens": 3501,
   "cost_usd": 0.1778,
   "model_calls": 6,
   "seconds": 49
  },
  {
   "variant": "claude_one",
   "rep": 1,
   "request": 20,
   "text": "Make the ball start from the paddle and launch when Space or the mouse button is pressed.",
   "input_tokens": 89540,
   "cache_write_tokens": 329,
   "cache_read_tokens": 89209,
   "uncached_input_tokens": 2,
   "output_tokens": 383,
   "cost_usd": 0.0281,
   "model_calls": 1,
   "seconds": 22
  },
  {
   "variant": "claude_one",
   "rep": 1,
   "request": 21,
   "text": "Add touch controls so it works on a phone.",
   "input_tokens": 372438,
   "cache_write_tokens": 6790,
   "cache_read_tokens": 365640,
   "uncached_input_tokens": 8,
   "output_tokens": 5604,
   "cost_usd": 0.2396,
   "model_calls": 7,
   "seconds": 65
  },
  {
   "variant": "claude_one",
   "rep": 1,
   "request": 22,
   "text": "Make the background a dark gradient.",
   "input_tokens": 194308,
   "cache_write_tokens": 1068,
   "cache_read_tokens": 193236,
   "uncached_input_tokens": 4,
   "output_tokens": 580,
   "cost_usd": 0.0588,
   "model_calls": 2,
   "seconds": 26
  },
  {
   "variant": "claude_one",
   "rep": 1,
   "request": 23,
   "text": "Show the time taken to clear each level.",
   "input_tokens": 400645,
   "cache_write_tokens": 4808,
   "cache_read_tokens": 395829,
   "uncached_input_tokens": 8,
   "output_tokens": 3670,
   "cost_usd": 0.1911,
   "model_calls": 11,
   "seconds": 54
  },
  {
   "variant": "claude_one",
   "rep": 1,
   "request": 24,
   "text": "Add a \"Restart\" button on the game-over screen.",
   "input_tokens": 425134,
   "cache_write_tokens": 6759,
   "cache_read_tokens": 418367,
   "uncached_input_tokens": 8,
   "output_tokens": 4718,
   "cost_usd": 0.2321,
   "model_calls": 8,
   "seconds": 58
  },
  {
   "variant": "claude_one",
   "rep": 1,
   "request": 25,
   "text": "Make the paddle slow down slightly near the walls.",
   "input_tokens": 219910,
   "cache_write_tokens": 1549,
   "cache_read_tokens": 218357,
   "uncached_input_tokens": 4,
   "output_tokens": 1186,
   "cost_usd": 0.0798,
   "model_calls": 3,
   "seconds": 26
  },
  {
   "variant": "claude_one",
   "rep": 1,
   "request": 26,
   "text": "Add a combo counter that doubles points for hitting bricks without touching the paddle.",
   "input_tokens": 224663,
   "cache_write_tokens": 3319,
   "cache_read_tokens": 221340,
   "uncached_input_tokens": 4,
   "output_tokens": 2740,
   "cost_usd": 0.1256,
   "model_calls": 9,
   "seconds": 40
  },
  {
   "variant": "claude_one",
   "rep": 1,
   "request": 27,
   "text": "Show a small tutorial line under the start text explaining the controls.",
   "input_tokens": 345850,
   "cache_write_tokens": 2065,
   "cache_read_tokens": 343779,
   "uncached_input_tokens": 6,
   "output_tokens": 1544,
   "cost_usd": 0.1162,
   "model_calls": 4,
   "seconds": 28
  },
  {
   "variant": "claude_one",
   "rep": 1,
   "request": 28,
   "text": "Make the brick layout of level 2 a pyramid.",
   "input_tokens": 350013,
   "cache_write_tokens": 1219,
   "cache_read_tokens": 348788,
   "uncached_input_tokens": 6,
   "output_tokens": 987,
   "cost_usd": 0.0993,
   "model_calls": 3,
   "seconds": 27
  },
  {
   "variant": "claude_one",
   "rep": 1,
   "request": 29,
   "text": "Add a setting to choose easy or hard mode on the start screen; hard mode makes the ball faster.",
   "input_tokens": 480057,
   "cache_write_tokens": 6461,
   "cache_read_tokens": 473588,
   "uncached_input_tokens": 8,
   "output_tokens": 5340,
   "cost_usd": 0.2532,
   "model_calls": 11,
   "seconds": 67
  },
  {
   "variant": "claude_one",
   "rep": 1,
   "request": 30,
   "text": "Clean up the code: remove anything unused and add short comments to each function.",
   "input_tokens": 575739,
   "cache_write_tokens": 32351,
   "cache_read_tokens": 543380,
   "uncached_input_tokens": 8,
   "output_tokens": 16136,
   "cost_usd": 0.6902,
   "model_calls": 4,
   "seconds": 125
  },
  {
   "variant": "claude_one",
   "rep": 2,
   "request": 1,
   "text": "Make a brick-breaker game that runs in the browser as a single file named index.html in the current folder. It needs 2 levels, a score display and 3 lives, and it must be playable with the keyboard and the mouse. Write the file and finish.",
   "input_tokens": 78918,
   "cache_write_tokens": 27130,
   "cache_read_tokens": 51784,
   "uncached_input_tokens": 4,
   "output_tokens": 7498,
   "cost_usd": 0.3774,
   "model_calls": 2,
   "seconds": 67
  },
  {
   "variant": "claude_one",
   "rep": 2,
   "request": 2,
   "text": "Make the ball red.",
   "input_tokens": 87338,
   "cache_write_tokens": 788,
   "cache_read_tokens": 86546,
   "uncached_input_tokens": 4,
   "output_tokens": 306,
   "cost_usd": 0.0297,
   "model_calls": 2,
   "seconds": 14
  },
  {
   "variant": "claude_one",
   "rep": 2,
   "request": 3,
   "text": "Make the paddle 20% wider.",
   "input_tokens": 88131,
   "cache_write_tokens": 345,
   "cache_read_tokens": 87782,
   "uncached_input_tokens": 4,
   "output_tokens": 227,
   "cost_usd": 0.0249,
   "model_calls": 2,
   "seconds": 12
  },
  {
   "variant": "claude_one",
   "rep": 2,
   "request": 4,
   "text": "Add a start screen that says \"Press Space to start\".",
   "input_tokens": 88918,
   "cache_write_tokens": 431,
   "cache_read_tokens": 88483,
   "uncached_input_tokens": 4,
   "output_tokens": 352,
   "cost_usd": 0.0282,
   "model_calls": 2,
   "seconds": 15
  },
  {
   "variant": "claude_one",
   "rep": 2,
   "request": 5,
   "text": "Show the current level number next to the score.",
   "input_tokens": 90020,
   "cache_write_tokens": 626,
   "cache_read_tokens": 89390,
   "uncached_input_tokens": 4,
   "output_tokens": 518,
   "cost_usd": 0.0333,
   "model_calls": 2,
   "seconds": 11
  },
  {
   "variant": "claude_one",
   "rep": 2,
   "request": 6,
   "text": "Make the bricks in each row a different color.",
   "input_tokens": 45417,
   "cache_write_tokens": 170,
   "cache_read_tokens": 45245,
   "uncached_input_tokens": 2,
   "output_tokens": 424,
   "cost_usd": 0.0189,
   "model_calls": 1,
   "seconds": 10
  },
  {
   "variant": "claude_one",
   "rep": 2,
   "request": 7,
   "text": "Add a pause when the P key is pressed.",
   "input_tokens": 45882,
   "cache_write_tokens": 465,
   "cache_read_tokens": 45415,
   "uncached_input_tokens": 2,
   "output_tokens": 214,
   "cost_usd": 0.0171,
   "model_calls": 1,
   "seconds": 13
  },
  {
   "variant": "claude_one",
   "rep": 2,
   "request": 8,
   "text": "Make the ball speed up a little after every 5 bricks.",
   "input_tokens": 93959,
   "cache_write_tokens": 1935,
   "cache_read_tokens": 92020,
   "uncached_input_tokens": 4,
   "output_tokens": 1644,
   "cost_usd": 0.0668,
   "model_calls": 5,
   "seconds": 23
  },
  {
   "variant": "claude_one",
   "rep": 2,
   "request": 9,
   "text": "Add a third level with a different brick layout.",
   "input_tokens": 97035,
   "cache_write_tokens": 1034,
   "cache_read_tokens": 95997,
   "uncached_input_tokens": 4,
   "output_tokens": 966,
   "cost_usd": 0.0468,
   "model_calls": 2,
   "seconds": 17
  },
  {
   "variant": "claude_one",
   "rep": 2,
   "request": 10,
   "text": "Show a \"You win\" screen after the last level.",
   "input_tokens": 49277,
   "cache_write_tokens": 426,
   "cache_read_tokens": 48849,
   "uncached_input_tokens": 2,
   "output_tokens": 204,
   "cost_usd": 0.0173,
   "model_calls": 1,
   "seconds": 8
  },
  {
   "variant": "claude_one",
   "rep": 2,
   "request": 11,
   "text": "Save the high score in localStorage and show it.",
   "input_tokens": 101480,
   "cache_write_tokens": 2681,
   "cache_read_tokens": 98795,
   "uncached_input_tokens": 4,
   "output_tokens": 2265,
   "cost_usd": 0.0865,
   "model_calls": 7,
   "seconds": 37
  },
  {
   "variant": "claude_one",
   "rep": 2,
   "request": 12,
   "text": "Make some bricks need two hits, and show them darker.",
   "input_tokens": 160711,
   "cache_write_tokens": 2849,
   "cache_read_tokens": 157856,
   "uncached_input_tokens": 6,
   "output_tokens": 1918,
   "cost_usd": 0.0927,
   "model_calls": 5,
   "seconds": 34
  },
  {
   "variant": "claude_one",
   "rep": 2,
   "request": 13,
   "text": "Add a simple sound when the ball hits a brick, using the Web Audio API.",
   "input_tokens": 111533,
   "cache_write_tokens": 1495,
   "cache_read_tokens": 110034,
   "uncached_input_tokens": 4,
   "output_tokens": 1126,
   "cost_usd": 0.0565,
   "model_calls": 3,
   "seconds": 16
  },
  {
   "variant": "claude_one",
   "rep": 2,
   "request": 14,
   "text": "Add a mute button in the top right corner.",
   "input_tokens": 177150,
   "cache_write_tokens": 4202,
   "cache_read_tokens": 172942,
   "uncached_input_tokens": 6,
   "output_tokens": 3719,
   "cost_usd": 0.1426,
   "model_calls": 6,
   "seconds": 42
  },
  {
   "variant": "claude_one",
   "rep": 2,
   "request": 15,
   "text": "Make the game fit the window when it is resized.",
   "input_tokens": 187369,
   "cache_write_tokens": 2938,
   "cache_read_tokens": 184425,
   "uncached_input_tokens": 6,
   "output_tokens": 2425,
   "cost_usd": 0.1089,
   "model_calls": 5,
   "seconds": 32
  },
  {
   "variant": "claude_one",
   "rep": 2,
   "request": 16,
   "text": "Add a short flash effect when a brick breaks.",
   "input_tokens": 195469,
   "cache_write_tokens": 2748,
   "cache_read_tokens": 192715,
   "uncached_input_tokens": 6,
   "output_tokens": 1992,
   "cost_usd": 0.1004,
   "model_calls": 8,
   "seconds": 30
  },
  {
   "variant": "claude_one",
   "rep": 2,
   "request": 17,
   "text": "Give the player an extra life every 1,000 points.",
   "input_tokens": 205477,
   "cache_write_tokens": 5219,
   "cache_read_tokens": 200252,
   "uncached_input_tokens": 6,
   "output_tokens": 4003,
   "cost_usd": 0.1619,
   "model_calls": 11,
   "seconds": 39
  },
  {
   "variant": "claude_one",
   "rep": 2,
   "request": 18,
   "text": "Add a power-up that sometimes drops from a broken brick and makes the paddle wider for 10 seconds.",
   "input_tokens": 225211,
   "cache_write_tokens": 5506,
   "cache_read_tokens": 219699,
   "uncached_input_tokens": 6,
   "output_tokens": 4660,
   "cost_usd": 0.1812,
   "model_calls": 10,
   "seconds": 50
  },
  {
   "variant": "claude_one",
   "rep": 2,
   "request": 19,
   "text": "Show the remaining lives as small hearts instead of a number.",
   "input_tokens": 237179,
   "cache_write_tokens": 3156,
   "cache_read_tokens": 234017,
   "uncached_input_tokens": 6,
   "output_tokens": 2556,
   "cost_usd": 0.1232,
   "model_calls": 5,
   "seconds": 31
  },
  {
   "variant": "claude_one",
   "rep": 2,
   "request": 20,
   "text": "Make the ball start from the paddle and launch when Space or the mouse button is pressed.",
   "input_tokens": 80319,
   "cache_write_tokens": 248,
   "cache_read_tokens": 80069,
   "uncached_input_tokens": 2,
   "output_tokens": 301,
   "cost_usd": 0.024,
   "model_calls": 1,
   "seconds": 14
  },
  {
   "variant": "claude_one",
   "rep": 2,
   "request": 21,
   "text": "Add touch controls so it works on a phone.",
   "input_tokens": 700221,
   "cache_write_tokens": 11925,
   "cache_read_tokens": 688280,
   "uncached_input_tokens": 16,
   "output_tokens": 8362,
   "cost_usd": 0.4004,
   "model_calls": 17,
   "seconds": 90
  },
  {
   "variant": "claude_one",
   "rep": 2,
   "request": 22,
   "text": "Make the background a dark gradient.",
   "input_tokens": 280102,
   "cache_write_tokens": 1720,
   "cache_read_tokens": 278376,
   "uncached_input_tokens": 6,
   "output_tokens": 894,
   "cost_usd": 0.0873,
   "model_calls": 4,
   "seconds": 17
  },
  {
   "variant": "claude_one",
   "rep": 2,
   "request": 23,
   "text": "Show the time taken to clear each level.",
   "input_tokens": 288519,
   "cache_write_tokens": 3781,
   "cache_read_tokens": 284732,
   "uncached_input_tokens": 6,
   "output_tokens": 3240,
   "cost_usd": 0.152,
   "model_calls": 9,
   "seconds": 36
  },
  {
   "variant": "claude_one",
   "rep": 2,
   "request": 24,
   "text": "Add a \"Restart\" button on the game-over screen.",
   "input_tokens": 199075,
   "cache_write_tokens": 3139,
   "cache_read_tokens": 195932,
   "uncached_input_tokens": 4,
   "output_tokens": 2629,
   "cost_usd": 0.1169,
   "model_calls": 6,
   "seconds": 41
  },
  {
   "variant": "claude_one",
   "rep": 2,
   "request": 25,
   "text": "Make the paddle slow down slightly near the walls.",
   "input_tokens": 517602,
   "cache_write_tokens": 5024,
   "cache_read_tokens": 512568,
   "uncached_input_tokens": 10,
   "output_tokens": 4064,
   "cost_usd": 0.224,
   "model_calls": 6,
   "seconds": 62
  },
  {
   "variant": "claude_one",
   "rep": 2,
   "request": 26,
   "text": "Add a combo counter that doubles points for hitting bricks without touching the paddle.",
   "input_tokens": 431411,
   "cache_write_tokens": 4299,
   "cache_read_tokens": 427104,
   "uncached_input_tokens": 8,
   "output_tokens": 3013,
   "cost_usd": 0.1801,
   "model_calls": 10,
   "seconds": 41
  },
  {
   "variant": "claude_one",
   "rep": 2,
   "request": 27,
   "text": "Show a small tutorial line under the start text explaining the controls.",
   "input_tokens": 222165,
   "cache_write_tokens": 1294,
   "cache_read_tokens": 220867,
   "uncached_input_tokens": 4,
   "output_tokens": 996,
   "cost_usd": 0.0745,
   "model_calls": 2,
   "seconds": 18
  },
  {
   "variant": "claude_one",
   "rep": 2,
   "request": 28,
   "text": "Make the brick layout of level 2 a pyramid.",
   "input_tokens": 224225,
   "cache_write_tokens": 933,
   "cache_read_tokens": 223288,
   "uncached_input_tokens": 4,
   "output_tokens": 829,
   "cost_usd": 0.0687,
   "model_calls": 2,
   "seconds": 14
  },
  {
   "variant": "claude_one",
   "rep": 2,
   "request": 29,
   "text": "Add a setting to choose easy or hard mode on the start screen; hard mode makes the ball faster.",
   "input_tokens": 585112,
   "cache_write_tokens": 8579,
   "cache_read_tokens": 576523,
   "uncached_input_tokens": 10,
   "output_tokens": 5921,
   "cost_usd": 0.3024,
   "model_calls": 15,
   "seconds": 68
  },
  {
   "variant": "claude_one",
   "rep": 2,
   "request": 30,
   "text": "Clean up the code: remove anything unused and add short comments to each function.",
   "input_tokens": 753155,
   "cache_write_tokens": 42935,
   "cache_read_tokens": 710210,
   "uncached_input_tokens": 10,
   "output_tokens": 22019,
   "cost_usd": 0.9259,
   "model_calls": 5,
   "seconds": 172
  },
  {
   "variant": "claude_compact",
   "rep": 1,
   "request": 1,
   "text": "Make a brick-breaker game that runs in the browser as a single file named index.html in the current folder. It needs 2 levels, a score display and 3 lives, and it must be playable with the keyboard and the mouse. Write the file and finish.",
   "input_tokens": 78257,
   "cache_write_tokens": 26467,
   "cache_read_tokens": 51786,
   "uncached_input_tokens": 4,
   "output_tokens": 6828,
   "cost_usd": 0.3587,
   "model_calls": 2,
   "seconds": 62
  },
  {
   "variant": "claude_compact",
   "rep": 1,
   "request": 2,
   "text": "Make the ball red.",
   "input_tokens": 86006,
   "cache_write_tokens": 786,
   "cache_read_tokens": 85216,
   "uncached_input_tokens": 4,
   "output_tokens": 292,
   "cost_usd": 0.0292,
   "model_calls": 2,
   "seconds": 18
  },
  {
   "variant": "claude_compact",
   "rep": 1,
   "request": 3,
   "text": "Make the paddle 20% wider.",
   "input_tokens": 86773,
   "cache_write_tokens": 332,
   "cache_read_tokens": 86437,
   "uncached_input_tokens": 4,
   "output_tokens": 222,
   "cost_usd": 0.0244,
   "model_calls": 2,
   "seconds": 19
  },
  {
   "variant": "claude_compact",
   "rep": 1,
   "request": 4,
   "text": "Add a start screen that says \"Press Space to start\".",
   "input_tokens": 88594,
   "cache_write_tokens": 1469,
   "cache_read_tokens": 87121,
   "uncached_input_tokens": 4,
   "output_tokens": 1180,
   "cost_usd": 0.0528,
   "model_calls": 5,
   "seconds": 33
  },
  {
   "variant": "claude_compact",
   "rep": 1,
   "request": 5,
   "text": "Show the current level number next to the score.",
   "input_tokens": 90783,
   "cache_write_tokens": 609,
   "cache_read_tokens": 90170,
   "uncached_input_tokens": 4,
   "output_tokens": 423,
   "cost_usd": 0.0314,
   "model_calls": 2,
   "seconds": 18
  },
  {
   "variant": "claude_compact",
   "rep": 1,
   "request": 6,
   "text": "Make the bricks in each row a different color.",
   "input_tokens": 45743,
   "cache_write_tokens": 153,
   "cache_read_tokens": 45588,
   "uncached_input_tokens": 2,
   "output_tokens": 314,
   "cost_usd": 0.0166,
   "model_calls": 1,
   "seconds": 24
  },
  {
   "variant": "claude_compact",
   "rep": 1,
   "request": 7,
   "text": "Add a pause when the P key is pressed.",
   "input_tokens": 46098,
   "cache_write_tokens": 355,
   "cache_read_tokens": 45741,
   "uncached_input_tokens": 2,
   "output_tokens": 171,
   "cost_usd": 0.0154,
   "model_calls": 1,
   "seconds": 13
  },
  {
   "variant": "claude_compact",
   "rep": 1,
   "request": 8,
   "text": "Make the ball speed up a little after every 5 bricks.",
   "input_tokens": 142846,
   "cache_write_tokens": 2858,
   "cache_read_tokens": 139982,
   "uncached_input_tokens": 6,
   "output_tokens": 1638,
   "cost_usd": 0.0836,
   "model_calls": 6,
   "seconds": 35
  },
  {
   "variant": "claude_compact",
   "rep": 1,
   "request": 9,
   "text": "Add a third level with a different brick layout.",
   "input_tokens": 98941,
   "cache_write_tokens": 759,
   "cache_read_tokens": 98178,
   "uncached_input_tokens": 4,
   "output_tokens": 550,
   "cost_usd": 0.0367,
   "model_calls": 2,
   "seconds": 21
  },
  {
   "variant": "claude_compact",
   "rep": 1,
   "request": 10,
   "text": "Show a \"You win\" screen after the last level.",
   "input_tokens": 49904,
   "cache_write_tokens": 189,
   "cache_read_tokens": 49713,
   "uncached_input_tokens": 2,
   "output_tokens": 201,
   "cost_usd": 0.0155,
   "model_calls": 1,
   "seconds": 16
  },
  {
   "variant": "claude_compact",
   "rep": 1,
   "request": 11,
   "text": "Save the high score in localStorage and show it.",
   "input_tokens": 101857,
   "cache_write_tokens": 1807,
   "cache_read_tokens": 100046,
   "uncached_input_tokens": 4,
   "output_tokens": 1453,
   "cost_usd": 0.0635,
   "model_calls": 5,
   "seconds": 26
  },
  {
   "variant": "claude_compact",
   "rep": 1,
   "request": 12,
   "text": "Make some bricks need two hits, and show them darker.",
   "input_tokens": 213491,
   "cache_write_tokens": 2757,
   "cache_read_tokens": 210726,
   "uncached_input_tokens": 8,
   "output_tokens": 1899,
   "cost_usd": 0.1022,
   "model_calls": 6,
   "seconds": 41
  },
  {
   "variant": "claude_compact",
   "rep": 1,
   "request": 13,
   "text": "Add a simple sound when the ball hits a brick, using the Web Audio API.",
   "input_tokens": 110642,
   "cache_write_tokens": 1463,
   "cache_read_tokens": 109175,
   "uncached_input_tokens": 4,
   "output_tokens": 1113,
   "cost_usd": 0.0558,
   "model_calls": 4,
   "seconds": 23
  },
  {
   "variant": "claude_compact",
   "rep": 1,
   "request": 14,
   "text": "Add a mute button in the top right corner.",
   "input_tokens": 495595,
   "cache_write_tokens": 8731,
   "cache_read_tokens": 486848,
   "uncached_input_tokens": 16,
   "output_tokens": 5893,
   "cost_usd": 0.2851,
   "model_calls": 17,
   "seconds": 79
  },
  {
   "variant": "claude_compact",
   "rep": 1,
   "request": 15,
   "text": "Make the game fit the window when it is resized.",
   "input_tokens": 198120,
   "cache_write_tokens": 2317,
   "cache_read_tokens": 195797,
   "uncached_input_tokens": 6,
   "output_tokens": 2051,
   "cost_usd": 0.0987,
   "model_calls": 4,
   "seconds": 40
  },
  {
   "variant": "claude_compact",
   "rep": 1,
   "request": 16,
   "text": "Add a short flash effect when a brick breaks.",
   "input_tokens": 167541,
   "cache_write_tokens": 28689,
   "cache_read_tokens": 138844,
   "uncached_input_tokens": 8,
   "output_tokens": 2320,
   "cost_usd": 0.3037,
   "model_calls": 10,
   "seconds": 34
  },
  {
   "variant": "claude_compact",
   "rep": 1,
   "request": 17,
   "text": "Give the player an extra life every 1,000 points.",
   "input_tokens": 239559,
   "cache_write_tokens": 5963,
   "cache_read_tokens": 233586,
   "uncached_input_tokens": 10,
   "output_tokens": 3742,
   "cost_usd": 0.1693,
   "model_calls": 11,
   "seconds": 51
  },
  {
   "variant": "claude_compact",
   "rep": 1,
   "request": 18,
   "text": "Add a power-up that sometimes drops from a broken brick and makes the paddle wider for 10 seconds.",
   "input_tokens": 270477,
   "cache_write_tokens": 6732,
   "cache_read_tokens": 263735,
   "uncached_input_tokens": 10,
   "output_tokens": 4471,
   "cost_usd": 0.1961,
   "model_calls": 12,
   "seconds": 56
  },
  {
   "variant": "claude_compact",
   "rep": 1,
   "request": 19,
   "text": "Show the remaining lives as small hearts instead of a number.",
   "input_tokens": 177668,
   "cache_write_tokens": 3365,
   "cache_read_tokens": 174297,
   "uncached_input_tokens": 6,
   "output_tokens": 2105,
   "cost_usd": 0.1039,
   "model_calls": 4,
   "seconds": 37
  },
  {
   "variant": "claude_compact",
   "rep": 1,
   "request": 20,
   "text": "Make the ball start from the paddle and launch when Space or the mouse button is pressed.",
   "input_tokens": 122551,
   "cache_write_tokens": 835,
   "cache_read_tokens": 121712,
   "uncached_input_tokens": 4,
   "output_tokens": 567,
   "cost_usd": 0.0424,
   "model_calls": 2,
   "seconds": 27
  },
  {
   "variant": "claude_compact",
   "rep": 1,
   "request": 21,
   "text": "Add touch controls so it works on a phone.",
   "input_tokens": 482002,
   "cache_write_tokens": 15720,
   "cache_read_tokens": 466268,
   "uncached_input_tokens": 14,
   "output_tokens": 9860,
   "cost_usd": 0.4163,
   "model_calls": 17,
   "seconds": 107
  },
  {
   "variant": "claude_compact",
   "rep": 1,
   "request": 22,
   "text": "Make the background a dark gradient.",
   "input_tokens": 156175,
   "cache_write_tokens": 1092,
   "cache_read_tokens": 155079,
   "uncached_input_tokens": 4,
   "output_tokens": 527,
   "cost_usd": 0.0503,
   "model_calls": 2,
   "seconds": 21
  },
  {
   "variant": "claude_compact",
   "rep": 1,
   "request": 23,
   "text": "Show the time taken to clear each level.",
   "input_tokens": 409638,
   "cache_write_tokens": 6872,
   "cache_read_tokens": 402756,
   "uncached_input_tokens": 10,
   "output_tokens": 4377,
   "cost_usd": 0.2231,
   "model_calls": 15,
   "seconds": 64
  },
  {
   "variant": "claude_compact",
   "rep": 1,
   "request": 24,
   "text": "Add a \"Restart\" button on the game-over screen.",
   "input_tokens": 263711,
   "cache_write_tokens": 4291,
   "cache_read_tokens": 259414,
   "uncached_input_tokens": 6,
   "output_tokens": 3602,
   "cost_usd": 0.1583,
   "model_calls": 8,
   "seconds": 47
  },
  {
   "variant": "claude_compact",
   "rep": 1,
   "request": 25,
   "text": "Make the paddle slow down slightly near the walls.",
   "input_tokens": 365842,
   "cache_write_tokens": 3954,
   "cache_read_tokens": 361880,
   "uncached_input_tokens": 8,
   "output_tokens": 3421,
   "cost_usd": 0.1725,
   "model_calls": 5,
   "seconds": 47
  },
  {
   "variant": "claude_compact",
   "rep": 1,
   "request": 26,
   "text": "Add a combo counter that doubles points for hitting bricks without touching the paddle.",
   "input_tokens": 480811,
   "cache_write_tokens": 4901,
   "cache_read_tokens": 475900,
   "uncached_input_tokens": 10,
   "output_tokens": 3070,
   "cost_usd": 0.1958,
   "model_calls": 11,
   "seconds": 43
  },
  {
   "variant": "claude_compact",
   "rep": 1,
   "request": 27,
   "text": "Show a small tutorial line under the start text explaining the controls.",
   "input_tokens": 198279,
   "cache_write_tokens": 1147,
   "cache_read_tokens": 197128,
   "uncached_input_tokens": 4,
   "output_tokens": 810,
   "cost_usd": 0.0648,
   "model_calls": 2,
   "seconds": 16
  },
  {
   "variant": "claude_compact",
   "rep": 1,
   "request": 28,
   "text": "Make the brick layout of level 2 a pyramid.",
   "input_tokens": 300579,
   "cache_write_tokens": 1255,
   "cache_read_tokens": 299318,
   "uncached_input_tokens": 6,
   "output_tokens": 1029,
   "cost_usd": 0.0905,
   "model_calls": 3,
   "seconds": 19
  },
  {
   "variant": "claude_compact",
   "rep": 1,
   "request": 29,
   "text": "Add a setting to choose easy or hard mode on the start screen; hard mode makes the ball faster.",
   "input_tokens": 206821,
   "cache_write_tokens": 4990,
   "cache_read_tokens": 201827,
   "uncached_input_tokens": 4,
   "output_tokens": 4493,
   "cost_usd": 0.1702,
   "model_calls": 10,
   "seconds": 49
  },
  {
   "variant": "claude_compact",
   "rep": 1,
   "request": 30,
   "text": "Clean up the code: remove anything unused and add short comments to each function.",
   "input_tokens": 651306,
   "cache_write_tokens": 34799,
   "cache_read_tokens": 616497,
   "uncached_input_tokens": 10,
   "output_tokens": 13764,
   "cost_usd": 0.677,
   "model_calls": 35,
   "seconds": 117
  },
  {
   "variant": "claude_compact",
   "rep": 2,
   "request": 1,
   "text": "Make a brick-breaker game that runs in the browser as a single file named index.html in the current folder. It needs 2 levels, a score display and 3 lives, and it must be playable with the keyboard and the mouse. Write the file and finish.",
   "input_tokens": 78201,
   "cache_write_tokens": 26411,
   "cache_read_tokens": 51786,
   "uncached_input_tokens": 4,
   "output_tokens": 6806,
   "cost_usd": 0.3578,
   "model_calls": 2,
   "seconds": 60
  },
  {
   "variant": "claude_compact",
   "rep": 2,
   "request": 2,
   "text": "Make the ball red.",
   "input_tokens": 85932,
   "cache_write_tokens": 790,
   "cache_read_tokens": 85138,
   "uncached_input_tokens": 4,
   "output_tokens": 279,
   "cost_usd": 0.0289,
   "model_calls": 2,
   "seconds": 8
  },
  {
   "variant": "claude_compact",
   "rep": 2,
   "request": 3,
   "text": "Make the paddle 20% wider.",
   "input_tokens": 86701,
   "cache_write_tokens": 347,
   "cache_read_tokens": 86350,
   "uncached_input_tokens": 4,
   "output_tokens": 268,
   "cost_usd": 0.0254,
   "model_calls": 2,
   "seconds": 9
  },
  {
   "variant": "claude_compact",
   "rep": 2,
   "request": 4,
   "text": "Add a start screen that says \"Press Space to start\".",
   "input_tokens": 88651,
   "cache_write_tokens": 1552,
   "cache_read_tokens": 87095,
   "uncached_input_tokens": 4,
   "output_tokens": 1253,
   "cost_usd": 0.0549,
   "model_calls": 5,
   "seconds": 16
  },
  {
   "variant": "claude_compact",
   "rep": 2,
   "request": 5,
   "text": "Show the current level number next to the score.",
   "input_tokens": 91133,
   "cache_write_tokens": 829,
   "cache_read_tokens": 90300,
   "uncached_input_tokens": 4,
   "output_tokens": 600,
   "cost_usd": 0.0367,
   "model_calls": 2,
   "seconds": 12
  },
  {
   "variant": "claude_compact",
   "rep": 2,
   "request": 6,
   "text": "Make the bricks in each row a different color.",
   "input_tokens": 46004,
   "cache_write_tokens": 148,
   "cache_read_tokens": 45854,
   "uncached_input_tokens": 2,
   "output_tokens": 351,
   "cost_usd": 0.0174,
   "model_calls": 1,
   "seconds": 8
  },
  {
   "variant": "claude_compact",
   "rep": 2,
   "request": 7,
   "text": "Add a pause when the P key is pressed.",
   "input_tokens": 46396,
   "cache_write_tokens": 392,
   "cache_read_tokens": 46002,
   "uncached_input_tokens": 2,
   "output_tokens": 336,
   "cost_usd": 0.0191,
   "model_calls": 1,
   "seconds": 9
  },
  {
   "variant": "claude_compact",
   "rep": 2,
   "request": 8,
   "text": "Make the ball speed up a little after every 5 bricks.",
   "input_tokens": 145118,
   "cache_write_tokens": 3671,
   "cache_read_tokens": 141441,
   "uncached_input_tokens": 6,
   "output_tokens": 2329,
   "cost_usd": 0.1043,
   "model_calls": 7,
   "seconds": 27
  },
  {
   "variant": "claude_compact",
   "rep": 2,
   "request": 9,
   "text": "Add a third level with a different brick layout.",
   "input_tokens": 101685,
   "cache_write_tokens": 1178,
   "cache_read_tokens": 100503,
   "uncached_input_tokens": 4,
   "output_tokens": 930,
   "cost_usd": 0.0481,
   "model_calls": 3,
   "seconds": 15
  },
  {
   "variant": "claude_compact",
   "rep": 2,
   "request": 10,
   "text": "Show a \"You win\" screen after the last level.",
   "input_tokens": 51607,
   "cache_write_tokens": 362,
   "cache_read_tokens": 51243,
   "uncached_input_tokens": 2,
   "output_tokens": 248,
   "cost_usd": 0.0181,
   "model_calls": 1,
   "seconds": 8
  },
  {
   "variant": "claude_compact",
   "rep": 2,
   "request": 11,
   "text": "Save the high score in localStorage and show it.",
   "input_tokens": 394045,
   "cache_write_tokens": 7085,
   "cache_read_tokens": 386946,
   "uncached_input_tokens": 14,
   "output_tokens": 3856,
   "cost_usd": 0.2112,
   "model_calls": 14,
   "seconds": 49
  },
  {
   "variant": "claude_compact",
   "rep": 2,
   "request": 12,
   "text": "Make some bricks need two hits, and show them darker.",
   "input_tokens": 181059,
   "cache_write_tokens": 2990,
   "cache_read_tokens": 178063,
   "uncached_input_tokens": 6,
   "output_tokens": 2129,
   "cost_usd": 0.1021,
   "model_calls": 6,
   "seconds": 27
  },
  {
   "variant": "claude_compact",
   "rep": 2,
   "request": 13,
   "text": "Add a simple sound when the ball hits a brick, using the Web Audio API.",
   "input_tokens": 125594,
   "cache_write_tokens": 1800,
   "cache_read_tokens": 123790,
   "uncached_input_tokens": 4,
   "output_tokens": 1451,
   "cost_usd": 0.0682,
   "model_calls": 4,
   "seconds": 18
  },
  {
   "variant": "claude_compact",
   "rep": 2,
   "request": 14,
   "text": "Add a mute button in the top right corner.",
   "input_tokens": 198520,
   "cache_write_tokens": 5778,
   "cache_read_tokens": 192736,
   "uncached_input_tokens": 6,
   "output_tokens": 4650,
   "cost_usd": 0.1778,
   "model_calls": 8,
   "seconds": 49
  },
  {
   "variant": "claude_compact",
   "rep": 2,
   "request": 15,
   "text": "Make the game fit the window when it is resized.",
   "input_tokens": 362082,
   "cache_write_tokens": 4685,
   "cache_read_tokens": 357387,
   "uncached_input_tokens": 10,
   "output_tokens": 3122,
   "cost_usd": 0.1714,
   "model_calls": 7,
   "seconds": 38
  },
  {
   "variant": "claude_compact",
   "rep": 2,
   "request": 16,
   "text": "Add a short flash effect when a brick breaks.",
   "input_tokens": 234068,
   "cache_write_tokens": 34476,
   "cache_read_tokens": 199582,
   "uncached_input_tokens": 10,
   "output_tokens": 2516,
   "cost_usd": 0.3661,
   "model_calls": 10,
   "seconds": 33
  },
  {
   "variant": "claude_compact",
   "rep": 2,
   "request": 17,
   "text": "Give the player an extra life every 1,000 points.",
   "input_tokens": 109869,
   "cache_write_tokens": 4666,
   "cache_read_tokens": 105199,
   "uncached_input_tokens": 4,
   "output_tokens": 4162,
   "cost_usd": 0.1416,
   "model_calls": 8,
   "seconds": 41
  },
  {
   "variant": "claude_compact",
   "rep": 2,
   "request": 18,
   "text": "Add a power-up that sometimes drops from a broken brick and makes the paddle wider for 10 seconds.",
   "input_tokens": 120415,
   "cache_write_tokens": 5710,
   "cache_read_tokens": 114701,
   "uncached_input_tokens": 4,
   "output_tokens": 5231,
   "cost_usd": 0.1733,
   "model_calls": 9,
   "seconds": 49
  },
  {
   "variant": "claude_compact",
   "rep": 2,
   "request": 19,
   "text": "Show the remaining lives as small hearts instead of a number.",
   "input_tokens": 194455,
   "cache_write_tokens": 3209,
   "cache_read_tokens": 191240,
   "uncached_input_tokens": 6,
   "output_tokens": 1952,
   "cost_usd": 0.103,
   "model_calls": 3,
   "seconds": 24
  },
  {
   "variant": "claude_compact",
   "rep": 2,
   "request": 20,
   "text": "Make the ball start from the paddle and launch when Space or the mouse button is pressed.",
   "input_tokens": 66388,
   "cache_write_tokens": 375,
   "cache_read_tokens": 66011,
   "uncached_input_tokens": 2,
   "output_tokens": 690,
   "cost_usd": 0.03,
   "model_calls": 1,
   "seconds": 12
  },
  {
   "variant": "claude_compact",
   "rep": 2,
   "request": 21,
   "text": "Add touch controls so it works on a phone.",
   "input_tokens": 630369,
   "cache_write_tokens": 20320,
   "cache_read_tokens": 610033,
   "uncached_input_tokens": 16,
   "output_tokens": 12350,
   "cost_usd": 0.5316,
   "model_calls": 26,
   "seconds": 123
  },
  {
   "variant": "claude_compact",
   "rep": 2,
   "request": 22,
   "text": "Make the background a dark gradient.",
   "input_tokens": 175878,
   "cache_write_tokens": 1809,
   "cache_read_tokens": 174065,
   "uncached_input_tokens": 4,
   "output_tokens": 1097,
   "cost_usd": 0.0712,
   "model_calls": 4,
   "seconds": 16
  },
  {
   "variant": "claude_compact",
   "rep": 2,
   "request": 23,
   "text": "Show the time taken to clear each level.",
   "input_tokens": 366379,
   "cache_write_tokens": 6208,
   "cache_read_tokens": 360163,
   "uncached_input_tokens": 8,
   "output_tokens": 4244,
   "cost_usd": 0.2066,
   "model_calls": 11,
   "seconds": 44
  },
  {
   "variant": "claude_compact",
   "rep": 2,
   "request": 24,
   "text": "Add a \"Restart\" button on the game-over screen.",
   "input_tokens": 390464,
   "cache_write_tokens": 4805,
   "cache_read_tokens": 385651,
   "uncached_input_tokens": 8,
   "output_tokens": 3619,
   "cost_usd": 0.188,
   "model_calls": 8,
   "seconds": 39
  },
  {
   "variant": "claude_compact",
   "rep": 2,
   "request": 25,
   "text": "Make the paddle slow down slightly near the walls.",
   "input_tokens": 302671,
   "cache_write_tokens": 2457,
   "cache_read_tokens": 300208,
   "uncached_input_tokens": 6,
   "output_tokens": 1955,
   "cost_usd": 0.1188,
   "model_calls": 5,
   "seconds": 24
  },
  {
   "variant": "claude_compact",
   "rep": 2,
   "request": 26,
   "text": "Add a combo counter that doubles points for hitting bricks without touching the paddle.",
   "input_tokens": 416229,
   "cache_write_tokens": 4676,
   "cache_read_tokens": 411545,
   "uncached_input_tokens": 8,
   "output_tokens": 3378,
   "cost_usd": 0.1873,
   "model_calls": 11,
   "seconds": 37
  },
  {
   "variant": "claude_compact",
   "rep": 2,
   "request": 27,
   "text": "Show a small tutorial line under the start text explaining the controls.",
   "input_tokens": 215057,
   "cache_write_tokens": 1165,
   "cache_read_tokens": 213888,
   "uncached_input_tokens": 4,
   "output_tokens": 702,
   "cost_usd": 0.0662,
   "model_calls": 2,
   "seconds": 13
  },
  {
   "variant": "claude_compact",
   "rep": 2,
   "request": 28,
   "text": "Make the brick layout of level 2 a pyramid.",
   "input_tokens": 216782,
   "cache_write_tokens": 891,
   "cache_read_tokens": 215887,
   "uncached_input_tokens": 4,
   "output_tokens": 895,
   "cost_usd": 0.0682,
   "model_calls": 2,
   "seconds": 15
  },
  {
   "variant": "claude_compact",
   "rep": 2,
   "request": 29,
   "text": "Add a setting to choose easy or hard mode on the start screen; hard mode makes the ball faster.",
   "input_tokens": 453885,
   "cache_write_tokens": 8009,
   "cache_read_tokens": 445868,
   "uncached_input_tokens": 8,
   "output_tokens": 5825,
   "cost_usd": 0.2698,
   "model_calls": 11,
   "seconds": 56
  },
  {
   "variant": "claude_compact",
   "rep": 2,
   "request": 30,
   "text": "Clean up the code: remove anything unused and add short comments to each function.",
   "input_tokens": 731929,
   "cache_write_tokens": 42705,
   "cache_read_tokens": 689214,
   "uncached_input_tokens": 10,
   "output_tokens": 21807,
   "cost_usd": 0.9157,
   "model_calls": 5,
   "seconds": 165
  },
  {
   "variant": "claude_fresh",
   "rep": 1,
   "request": 1,
   "text": "Make a brick-breaker game that runs in the browser as a single file named index.html in the current folder. It needs 2 levels, a score display and 3 lives, and it must be playable with the keyboard and the mouse. Write the file and finish.",
   "input_tokens": 78086,
   "cache_write_tokens": 26294,
   "cache_read_tokens": 51788,
   "uncached_input_tokens": 4,
   "output_tokens": 6661,
   "cost_usd": 0.3539,
   "model_calls": 2,
   "seconds": 73
  },
  {
   "variant": "claude_fresh",
   "rep": 1,
   "request": 2,
   "text": "Make the ball red.",
   "input_tokens": 150003,
   "cache_write_tokens": 20460,
   "cache_read_tokens": 129535,
   "uncached_input_tokens": 8,
   "output_tokens": 678,
   "cost_usd": 0.2032,
   "model_calls": 4,
   "seconds": 24
  },
  {
   "variant": "claude_fresh",
   "rep": 1,
   "request": 3,
   "text": "Make the paddle 20% wider.",
   "input_tokens": 146669,
   "cache_write_tokens": 19418,
   "cache_read_tokens": 127243,
   "uncached_input_tokens": 8,
   "output_tokens": 775,
   "cost_usd": 0.1963,
   "model_calls": 5,
   "seconds": 29
  },
  {
   "variant": "claude_fresh",
   "rep": 1,
   "request": 4,
   "text": "Add a start screen that says \"Press Space to start\".",
   "input_tokens": 121825,
   "cache_write_tokens": 25337,
   "cache_read_tokens": 96482,
   "uncached_input_tokens": 6,
   "output_tokens": 700,
   "cost_usd": 0.236,
   "model_calls": 3,
   "seconds": 24
  },
  {
   "variant": "claude_fresh",
   "rep": 1,
   "request": 5,
   "text": "Show the current level number next to the score.",
   "input_tokens": 147486,
   "cache_write_tokens": 19811,
   "cache_read_tokens": 127667,
   "uncached_input_tokens": 8,
   "output_tokens": 944,
   "cost_usd": 0.2029,
   "model_calls": 4,
   "seconds": 30
  },
  {
   "variant": "claude_fresh",
   "rep": 1,
   "request": 6,
   "text": "Make the bricks in each row a different color.",
   "input_tokens": 150621,
   "cache_write_tokens": 21302,
   "cache_read_tokens": 129311,
   "uncached_input_tokens": 8,
   "output_tokens": 1213,
   "cost_usd": 0.2206,
   "model_calls": 5,
   "seconds": 34
  },
  {
   "variant": "claude_fresh",
   "rep": 1,
   "request": 7,
   "text": "Add a pause when the P key is pressed.",
   "input_tokens": 78553,
   "cache_write_tokens": 24784,
   "cache_read_tokens": 53765,
   "uncached_input_tokens": 4,
   "output_tokens": 697,
   "cost_usd": 0.223,
   "model_calls": 2,
   "seconds": 29
  },
  {
   "variant": "claude_fresh",
   "rep": 1,
   "request": 8,
   "text": "Make the ball speed up a little after every 5 bricks.",
   "input_tokens": 123390,
   "cache_write_tokens": 26874,
   "cache_read_tokens": 96510,
   "uncached_input_tokens": 6,
   "output_tokens": 1964,
   "cost_usd": 0.2736,
   "model_calls": 7,
   "seconds": 37
  },
  {
   "variant": "claude_fresh",
   "rep": 1,
   "request": 9,
   "text": "Add a third level with a different brick layout.",
   "input_tokens": 122529,
   "cache_write_tokens": 25716,
   "cache_read_tokens": 96807,
   "uncached_input_tokens": 6,
   "output_tokens": 854,
   "cost_usd": 0.2422,
   "model_calls": 3,
   "seconds": 22
  },
  {
   "variant": "claude_fresh",
   "rep": 1,
   "request": 10,
   "text": "Show a \"You win\" screen after the last level.",
   "input_tokens": 78988,
   "cache_write_tokens": 25219,
   "cache_read_tokens": 53765,
   "uncached_input_tokens": 4,
   "output_tokens": 590,
   "cost_usd": 0.2243,
   "model_calls": 2,
   "seconds": 16
  },
  {
   "variant": "claude_fresh",
   "rep": 1,
   "request": 11,
   "text": "Save the high score in localStorage and show it.",
   "input_tokens": 125168,
   "cache_write_tokens": 28227,
   "cache_read_tokens": 96935,
   "uncached_input_tokens": 6,
   "output_tokens": 2959,
   "cost_usd": 0.3044,
   "model_calls": 9,
   "seconds": 41
  },
  {
   "variant": "claude_fresh",
   "rep": 1,
   "request": 12,
   "text": "Make some bricks need two hits, and show them darker.",
   "input_tokens": 124730,
   "cache_write_tokens": 27338,
   "cache_read_tokens": 97386,
   "uncached_input_tokens": 6,
   "output_tokens": 1693,
   "cost_usd": 0.2721,
   "model_calls": 5,
   "seconds": 31
  },
  {
   "variant": "claude_fresh",
   "rep": 1,
   "request": 13,
   "text": "Add a simple sound when the ball hits a brick, using the Web Audio API.",
   "input_tokens": 124665,
   "cache_write_tokens": 27162,
   "cache_read_tokens": 97497,
   "uncached_input_tokens": 6,
   "output_tokens": 1479,
   "cost_usd": 0.2664,
   "model_calls": 5,
   "seconds": 34
  },
  {
   "variant": "claude_fresh",
   "rep": 1,
   "request": 14,
   "text": "Add a mute button in the top right corner.",
   "input_tokens": 173373,
   "cache_write_tokens": 28896,
   "cache_read_tokens": 144469,
   "uncached_input_tokens": 8,
   "output_tokens": 2395,
   "cost_usd": 0.308,
   "model_calls": 7,
   "seconds": 41
  },
  {
   "variant": "claude_fresh",
   "rep": 1,
   "request": 15,
   "text": "Make the game fit the window when it is resized.",
   "input_tokens": 174592,
   "cache_write_tokens": 29418,
   "cache_read_tokens": 145166,
   "uncached_input_tokens": 8,
   "output_tokens": 2745,
   "cost_usd": 0.3193,
   "model_calls": 5,
   "seconds": 44
  },
  {
   "variant": "claude_fresh",
   "rep": 1,
   "request": 16,
   "text": "Add a short flash effect when a brick breaks.",
   "input_tokens": 128778,
   "cache_write_tokens": 29580,
   "cache_read_tokens": 99192,
   "uncached_input_tokens": 6,
   "output_tokens": 1821,
   "cost_usd": 0.2929,
   "model_calls": 8,
   "seconds": 27
  },
  {
   "variant": "claude_fresh",
   "rep": 1,
   "request": 17,
   "text": "Give the player an extra life every 1,000 points.",
   "input_tokens": 256225,
   "cache_write_tokens": 29660,
   "cache_read_tokens": 226553,
   "uncached_input_tokens": 12,
   "output_tokens": 3810,
   "cost_usd": 0.3588,
   "model_calls": 10,
   "seconds": 53
  },
  {
   "variant": "claude_fresh",
   "rep": 1,
   "request": 18,
   "text": "Add a power-up that sometimes drops from a broken brick and makes the paddle wider for 10 seconds.",
   "input_tokens": 234173,
   "cache_write_tokens": 33573,
   "cache_read_tokens": 200590,
   "uncached_input_tokens": 10,
   "output_tokens": 4657,
   "cost_usd": 0.4019,
   "model_calls": 10,
   "seconds": 51
  },
  {
   "variant": "claude_fresh",
   "rep": 1,
   "request": 19,
   "text": "Show the remaining lives as small hearts instead of a number.",
   "input_tokens": 151148,
   "cache_write_tokens": 21944,
   "cache_read_tokens": 129196,
   "uncached_input_tokens": 8,
   "output_tokens": 2010,
   "cost_usd": 0.2416,
   "model_calls": 5,
   "seconds": 34
  },
  {
   "variant": "claude_fresh",
   "rep": 1,
   "request": 20,
   "text": "Make the ball start from the paddle and launch when Space or the mouse button is pressed.",
   "input_tokens": 134046,
   "cache_write_tokens": 31739,
   "cache_read_tokens": 102301,
   "uncached_input_tokens": 6,
   "output_tokens": 1472,
   "cost_usd": 0.3038,
   "model_calls": 3,
   "seconds": 35
  },
  {
   "variant": "claude_fresh",
   "rep": 1,
   "request": 21,
   "text": "Add touch controls so it works on a phone.",
   "input_tokens": 424300,
   "cache_write_tokens": 40243,
   "cache_read_tokens": 384041,
   "uncached_input_tokens": 16,
   "output_tokens": 9136,
   "cost_usd": 0.5815,
   "model_calls": 13,
   "seconds": 102
  },
  {
   "variant": "claude_fresh",
   "rep": 1,
   "request": 22,
   "text": "Make the background a dark gradient.",
   "input_tokens": 148446,
   "cache_write_tokens": 20463,
   "cache_read_tokens": 127975,
   "uncached_input_tokens": 8,
   "output_tokens": 947,
   "cost_usd": 0.2083,
   "model_calls": 5,
   "seconds": 34
  },
  {
   "variant": "claude_fresh",
   "rep": 1,
   "request": 23,
   "text": "Show the time taken to clear each level.",
   "input_tokens": 193860,
   "cache_write_tokens": 36204,
   "cache_read_tokens": 157648,
   "uncached_input_tokens": 8,
   "output_tokens": 3567,
   "cost_usd": 0.3925,
   "model_calls": 10,
   "seconds": 46
  },
  {
   "variant": "claude_fresh",
   "rep": 1,
   "request": 24,
   "text": "Add a \"Restart\" button on the game-over screen.",
   "input_tokens": 139401,
   "cache_write_tokens": 34917,
   "cache_read_tokens": 104478,
   "uncached_input_tokens": 6,
   "output_tokens": 2227,
   "cost_usd": 0.3448,
   "model_calls": 6,
   "seconds": 43
  },
  {
   "variant": "claude_fresh",
   "rep": 1,
   "request": 25,
   "text": "Make the paddle slow down slightly near the walls.",
   "input_tokens": 150678,
   "cache_write_tokens": 21436,
   "cache_read_tokens": 129234,
   "uncached_input_tokens": 8,
   "output_tokens": 1886,
   "cost_usd": 0.2351,
   "model_calls": 5,
   "seconds": 34
  },
  {
   "variant": "claude_fresh",
   "rep": 1,
   "request": 26,
   "text": "Add a combo counter that doubles points for hitting bricks without touching the paddle.",
   "input_tokens": 141207,
   "cache_write_tokens": 36030,
   "cache_read_tokens": 105171,
   "uncached_input_tokens": 6,
   "output_tokens": 2489,
   "cost_usd": 0.3591,
   "model_calls": 8,
   "seconds": 37
  },
  {
   "variant": "claude_fresh",
   "rep": 1,
   "request": 27,
   "text": "Show a small tutorial line under the start text explaining the controls.",
   "input_tokens": 241160,
   "cache_write_tokens": 24825,
   "cache_read_tokens": 216323,
   "uncached_input_tokens": 12,
   "output_tokens": 1974,
   "cost_usd": 0.2814,
   "model_calls": 6,
   "seconds": 31
  },
  {
   "variant": "claude_fresh",
   "rep": 1,
   "request": 28,
   "text": "Make the brick layout of level 2 a pyramid.",
   "input_tokens": 176502,
   "cache_write_tokens": 34835,
   "cache_read_tokens": 141659,
   "uncached_input_tokens": 8,
   "output_tokens": 1227,
   "cost_usd": 0.3316,
   "model_calls": 4,
   "seconds": 24
  },
  {
   "variant": "claude_fresh",
   "rep": 1,
   "request": 29,
   "text": "Add a setting to choose easy or hard mode on the start screen; hard mode makes the ball faster.",
   "input_tokens": 254590,
   "cache_write_tokens": 38404,
   "cache_read_tokens": 216176,
   "uncached_input_tokens": 10,
   "output_tokens": 4042,
   "cost_usd": 0.4313,
   "model_calls": 11,
   "seconds": 46
  },
  {
   "variant": "claude_fresh",
   "rep": 1,
   "request": 30,
   "text": "Clean up the code: remove anything unused and add short comments to each function.",
   "input_tokens": 217295,
   "cache_write_tokens": 46510,
   "cache_read_tokens": 170777,
   "uncached_input_tokens": 8,
   "output_tokens": 8830,
   "cost_usd": 0.5829,
   "model_calls": 34,
   "seconds": 84
  },
  {
   "variant": "claude_fresh",
   "rep": 2,
   "request": 1,
   "text": "Make a brick-breaker game that runs in the browser as a single file named index.html in the current folder. It needs 2 levels, a score display and 3 lives, and it must be playable with the keyboard and the mouse. Write the file and finish.",
   "input_tokens": 78858,
   "cache_write_tokens": 27066,
   "cache_read_tokens": 51788,
   "uncached_input_tokens": 4,
   "output_tokens": 7500,
   "cost_usd": 0.3769,
   "model_calls": 2,
   "seconds": 64
  },
  {
   "variant": "claude_fresh",
   "rep": 2,
   "request": 2,
   "text": "Make the ball red.",
   "input_tokens": 150718,
   "cache_write_tokens": 20692,
   "cache_read_tokens": 130018,
   "uncached_input_tokens": 8,
   "output_tokens": 680,
   "cost_usd": 0.2052,
   "model_calls": 4,
   "seconds": 17
  },
  {
   "variant": "claude_fresh",
   "rep": 2,
   "request": 3,
   "text": "Make the paddle 20% wider.",
   "input_tokens": 146938,
   "cache_write_tokens": 19421,
   "cache_read_tokens": 127509,
   "uncached_input_tokens": 8,
   "output_tokens": 739,
   "cost_usd": 0.1957,
   "model_calls": 5,
   "seconds": 20
  },
  {
   "variant": "claude_fresh",
   "rep": 2,
   "request": 4,
   "text": "Add a start screen that says \"Press Space to start\".",
   "input_tokens": 123541,
   "cache_write_tokens": 26126,
   "cache_read_tokens": 97409,
   "uncached_input_tokens": 6,
   "output_tokens": 605,
   "cost_usd": 0.2406,
   "model_calls": 3,
   "seconds": 17
  },
  {
   "variant": "claude_fresh",
   "rep": 2,
   "request": 5,
   "text": "Show the current level number next to the score.",
   "input_tokens": 147586,
   "cache_write_tokens": 19874,
   "cache_read_tokens": 127704,
   "uncached_input_tokens": 8,
   "output_tokens": 948,
   "cost_usd": 0.2035,
   "model_calls": 4,
   "seconds": 21
  },
  {
   "variant": "claude_fresh",
   "rep": 2,
   "request": 6,
   "text": "Make the bricks in each row a different color.",
   "input_tokens": 201719,
   "cache_write_tokens": 25656,
   "cache_read_tokens": 176053,
   "uncached_input_tokens": 10,
   "output_tokens": 1625,
   "cost_usd": 0.273,
   "model_calls": 6,
   "seconds": 28
  },
  {
   "variant": "claude_fresh",
   "rep": 2,
   "request": 7,
   "text": "Add a pause when the P key is pressed.",
   "input_tokens": 79460,
   "cache_write_tokens": 25691,
   "cache_read_tokens": 53765,
   "uncached_input_tokens": 4,
   "output_tokens": 598,
   "cost_usd": 0.2283,
   "model_calls": 2,
   "seconds": 11
  },
  {
   "variant": "claude_fresh",
   "rep": 2,
   "request": 8,
   "text": "Make the ball speed up a little after every 5 bricks.",
   "input_tokens": 125413,
   "cache_write_tokens": 27990,
   "cache_read_tokens": 97417,
   "uncached_input_tokens": 6,
   "output_tokens": 2202,
   "cost_usd": 0.2875,
   "model_calls": 7,
   "seconds": 22
  },
  {
   "variant": "claude_fresh",
   "rep": 2,
   "request": 9,
   "text": "Add a third level with a different brick layout.",
   "input_tokens": 124336,
   "cache_write_tokens": 26644,
   "cache_read_tokens": 97686,
   "uncached_input_tokens": 6,
   "output_tokens": 877,
   "cost_usd": 0.2503,
   "model_calls": 3,
   "seconds": 17
  },
  {
   "variant": "claude_fresh",
   "rep": 2,
   "request": 10,
   "text": "Show a \"You win\" screen after the last level.",
   "input_tokens": 79855,
   "cache_write_tokens": 26086,
   "cache_read_tokens": 53765,
   "uncached_input_tokens": 4,
   "output_tokens": 695,
   "cost_usd": 0.2334,
   "model_calls": 2,
   "seconds": 13
  },
  {
   "variant": "claude_fresh",
   "rep": 2,
   "request": 11,
   "text": "Save the high score in localStorage and show it.",
   "input_tokens": 127214,
   "cache_write_tokens": 29406,
   "cache_read_tokens": 97802,
   "uncached_input_tokens": 6,
   "output_tokens": 3024,
   "cost_usd": 0.3153,
   "model_calls": 10,
   "seconds": 28
  },
  {
   "variant": "claude_fresh",
   "rep": 2,
   "request": 12,
   "text": "Make some bricks need two hits, and show them darker.",
   "input_tokens": 127064,
   "cache_write_tokens": 28739,
   "cache_read_tokens": 98319,
   "uncached_input_tokens": 6,
   "output_tokens": 2318,
   "cost_usd": 0.296,
   "model_calls": 5,
   "seconds": 25
  },
  {
   "variant": "claude_fresh",
   "rep": 2,
   "request": 13,
   "text": "Add a simple sound when the ball hits a brick, using the Web Audio API.",
   "input_tokens": 126643,
   "cache_write_tokens": 28156,
   "cache_read_tokens": 98481,
   "uncached_input_tokens": 6,
   "output_tokens": 1462,
   "cost_usd": 0.2742,
   "model_calls": 5,
   "seconds": 18
  },
  {
   "variant": "claude_fresh",
   "rep": 2,
   "request": 14,
   "text": "Add a mute button in the top right corner.",
   "input_tokens": 176254,
   "cache_write_tokens": 29837,
   "cache_read_tokens": 146409,
   "uncached_input_tokens": 8,
   "output_tokens": 2377,
   "cost_usd": 0.3155,
   "model_calls": 7,
   "seconds": 32
  },
  {
   "variant": "claude_fresh",
   "rep": 2,
   "request": 15,
   "text": "Make the game fit the window when it is resized.",
   "input_tokens": 177852,
   "cache_write_tokens": 30446,
   "cache_read_tokens": 147398,
   "uncached_input_tokens": 8,
   "output_tokens": 2859,
   "cost_usd": 0.3303,
   "model_calls": 5,
   "seconds": 35
  },
  {
   "variant": "claude_fresh",
   "rep": 2,
   "request": 16,
   "text": "Add a short flash effect when a brick breaks.",
   "input_tokens": 130777,
   "cache_write_tokens": 30778,
   "cache_read_tokens": 99993,
   "uncached_input_tokens": 6,
   "output_tokens": 2177,
   "cost_usd": 0.3098,
   "model_calls": 9,
   "seconds": 21
  },
  {
   "variant": "claude_fresh",
   "rep": 2,
   "request": 17,
   "text": "Give the player an extra life every 1,000 points.",
   "input_tokens": 199670,
   "cache_write_tokens": 25364,
   "cache_read_tokens": 174296,
   "uncached_input_tokens": 10,
   "output_tokens": 3251,
   "cost_usd": 0.3028,
   "model_calls": 9,
   "seconds": 41
  },
  {
   "variant": "claude_fresh",
   "rep": 2,
   "request": 18,
   "text": "Add a power-up that sometimes drops from a broken brick and makes the paddle wider for 10 seconds.",
   "input_tokens": 293116,
   "cache_write_tokens": 35625,
   "cache_read_tokens": 257479,
   "uncached_input_tokens": 12,
   "output_tokens": 5664,
   "cost_usd": 0.4498,
   "model_calls": 13,
   "seconds": 58
  },
  {
   "variant": "claude_fresh",
   "rep": 2,
   "request": 19,
   "text": "Show the remaining lives as small hearts instead of a number.",
   "input_tokens": 226491,
   "cache_write_tokens": 22137,
   "cache_read_tokens": 204342,
   "uncached_input_tokens": 12,
   "output_tokens": 2497,
   "cost_usd": 0.268,
   "model_calls": 7,
   "seconds": 34
  },
  {
   "variant": "claude_fresh",
   "rep": 2,
   "request": 20,
   "text": "Make the ball start from the paddle and launch when Space or the mouse button is pressed.",
   "input_tokens": 135975,
   "cache_write_tokens": 32751,
   "cache_read_tokens": 103218,
   "uncached_input_tokens": 6,
   "output_tokens": 1356,
   "cost_usd": 0.3098,
   "model_calls": 3,
   "seconds": 20
  },
  {
   "variant": "claude_fresh",
   "rep": 2,
   "request": 21,
   "text": "Add touch controls so it works on a phone.",
   "input_tokens": 367379,
   "cache_write_tokens": 39977,
   "cache_read_tokens": 327388,
   "uncached_input_tokens": 14,
   "output_tokens": 7956,
   "cost_usd": 0.5445,
   "model_calls": 12,
   "seconds": 93
  },
  {
   "variant": "claude_fresh",
   "rep": 2,
   "request": 22,
   "text": "Make the background a dark gradient.",
   "input_tokens": 148698,
   "cache_write_tokens": 20626,
   "cache_read_tokens": 128064,
   "uncached_input_tokens": 8,
   "output_tokens": 1040,
   "cost_usd": 0.2115,
   "model_calls": 5,
   "seconds": 19
  },
  {
   "variant": "claude_fresh",
   "rep": 2,
   "request": 23,
   "text": "Show the time taken to clear each level.",
   "input_tokens": 303097,
   "cache_write_tokens": 36769,
   "cache_read_tokens": 266316,
   "uncached_input_tokens": 12,
   "output_tokens": 3460,
   "cost_usd": 0.4167,
   "model_calls": 10,
   "seconds": 38
  },
  {
   "variant": "claude_fresh",
   "rep": 2,
   "request": 24,
   "text": "Add a \"Restart\" button on the game-over screen.",
   "input_tokens": 141011,
   "cache_write_tokens": 35864,
   "cache_read_tokens": 105141,
   "uncached_input_tokens": 6,
   "output_tokens": 2611,
   "cost_usd": 0.3602,
   "model_calls": 6,
   "seconds": 32
  },
  {
   "variant": "claude_fresh",
   "rep": 2,
   "request": 25,
   "text": "Make the paddle slow down slightly near the walls.",
   "input_tokens": 154835,
   "cache_write_tokens": 23851,
   "cache_read_tokens": 130976,
   "uncached_input_tokens": 8,
   "output_tokens": 2648,
   "cost_usd": 0.27,
   "model_calls": 6,
   "seconds": 37
  },
  {
   "variant": "claude_fresh",
   "rep": 2,
   "request": 26,
   "text": "Add a combo counter that doubles points for hitting bricks without touching the paddle.",
   "input_tokens": 256536,
   "cache_write_tokens": 38536,
   "cache_read_tokens": 217990,
   "uncached_input_tokens": 10,
   "output_tokens": 3739,
   "cost_usd": 0.4267,
   "model_calls": 12,
   "seconds": 38
  },
  {
   "variant": "claude_fresh",
   "rep": 2,
   "request": 27,
   "text": "Show a small tutorial line under the start text explaining the controls.",
   "input_tokens": 156312,
   "cache_write_tokens": 23552,
   "cache_read_tokens": 132752,
   "uncached_input_tokens": 8,
   "output_tokens": 1514,
   "cost_usd": 0.2453,
   "model_calls": 4,
   "seconds": 24
  },
  {
   "variant": "claude_fresh",
   "rep": 2,
   "request": 28,
   "text": "Make the brick layout of level 2 a pyramid.",
   "input_tokens": 178443,
   "cache_write_tokens": 35777,
   "cache_read_tokens": 142658,
   "uncached_input_tokens": 8,
   "output_tokens": 1315,
   "cost_usd": 0.3411,
   "model_calls": 4,
   "seconds": 23
  },
  {
   "variant": "claude_fresh",
   "rep": 2,
   "request": 29,
   "text": "Add a setting to choose easy or hard mode on the start screen; hard mode makes the ball faster.",
   "input_tokens": 260267,
   "cache_write_tokens": 39855,
   "cache_read_tokens": 220402,
   "uncached_input_tokens": 10,
   "output_tokens": 4594,
   "cost_usd": 0.4548,
   "model_calls": 12,
   "seconds": 52
  },
  {
   "variant": "claude_fresh",
   "rep": 2,
   "request": 30,
   "text": "Clean up the code: remove anything unused and add short comments to each function.",
   "input_tokens": 309937,
   "cache_write_tokens": 55758,
   "cache_read_tokens": 254169,
   "uncached_input_tokens": 10,
   "output_tokens": 20171,
   "cost_usd": 0.9004,
   "model_calls": 5,
   "seconds": 162
  }
 ]
}