TokenSave
All comparisons · Prices checked 2026-10-01
GPT-5.6 vs GPT-6 Sol: API cost comparison
For a typical chatbot reply, GPT-5.6 costs $0.014 and GPT-6 Sol costs $0.0070 per request: GPT-6 Sol is 2.0× cheaper. GPT-6 Sol is cheaper in every workload below.
API prices
| GPT-5.6 | GPT-6 Sol | |
|---|---|---|
| Maker | OpenAI | OpenAI |
| Input / 1M tokens | $4 | $2 |
| Output / 1M tokens | $20 | $10 |
| Output vs input price | 5.0× | 5.0× |
| Context window | 922K tokens | 922K tokens |
| Tokens for the same English text | baseline (GPT o200k count) | baseline (GPT o200k count) |
Cost by workload
| Workload (per 1,000 requests) | GPT-5.6 | GPT-6 Sol | Cheaper |
|---|---|---|---|
| Chatbot reply short question plus some chat history · 1,500 in / 400 out | $14.00 | $7.00 | GPT-6 Sol 2.0× cheaper |
| Document Q&A (RAG) retrieved passages plus a question · 8,000 in / 500 out | $42.00 | $21.00 | GPT-6 Sol 2.0× cheaper |
| Coding agent step large working context, short edit · 25,000 in / 800 out | $116 | $58.00 | GPT-6 Sol 2.0× cheaper |
| Summarize a long report long input, short summary · 20,000 in / 300 out | $86.00 | $43.00 | GPT-6 Sol 2.0× cheaper |
| Write an article short brief, long draft · 800 in / 2,000 out | $43.20 | $21.60 | GPT-6 Sol 2.0× cheaper |
GPT-6 Sol is cheaper on both input and output, so it costs less for every kind of request. The gap is 2.0× on input and 2.0× on output.
Monthly cost
| Monthly volume | GPT-5.6 | GPT-6 Sol |
|---|---|---|
| 10,000 chatbot replies / month | $140 | $70.00 |
| 100,000 chatbot replies / month | $1,400 | $700 |
| 1,000,000 chatbot replies / month | $14,000 | $7,000 |
Calculate your own
Enter your typical request size and volume.
Token counts are for English text measured with GPT's tokenizer; each model's own tokenizer difference is applied automatically.
Questions
Which is cheaper, GPT-5.6 or GPT-6 Sol?
For a typical chatbot reply (1,500 input and 400 output tokens), GPT-5.6 costs $0.014 and GPT-6 Sol costs $0.0070 per request, so GPT-6 Sol is 2.0× cheaper. GPT-6 Sol is cheaper in every workload below.
How much do GPT-5.6 and GPT-6 Sol cost per million tokens?
GPT-5.6 costs $4 per 1M input tokens and $20 per 1M output tokens. GPT-6 Sol costs $2 input and $10 output. Prices checked 2026-10-01.
Do both models count the same text as the same number of tokens?
No. Each model family has its own tokenizer, so the same text can be a different number of tokens. The costs on this page already include that difference (estimated from GPT's tokenizer).
Related comparisons
- GPT-6 Sol vs Claude Sonnet 5.5
- Gemini 3.1 Pro vs GPT-6 Sol
- GPT-6 Sol vs GPT-6 Astra
- GPT-6 Luna vs GPT-6 Sol
- DeepSeek V4 Pro vs GPT-6 Sol
- Grok 4.7 vs GPT-6 Sol
Paste a real prompt to see its exact tokens and cost on GPT-5.6, GPT-6 Sol and 30+ other models.
Open the token counter →Standard API list prices, short-context tier, no caching or batch discounts. Prices change; check each provider's pricing page before large jobs.