TokenSave
AI Image Cost Calculator
See what the same images cost on every major AI image model.
Prices are per generated image. Reference-image fees, taxes and volume discounts are not included.
How is AI image generation priced?
Most image APIs charge a fixed price per image that rises with resolution. OpenAI models also charge more for higher quality settings, and FLUX bills by megapixel.
What is the cheapest AI image model?
Small models such as FLUX.2 [klein], Grok Imagine and GPT Image at low quality cost around $0.01–0.02 per image. Premium models at 4K can cost $0.15–0.40 per image.
What is Nano Banana?
Nano Banana is the nickname for Google's Gemini image models. Nano Banana 2 is Gemini 3.1 Flash Image and Nano Banana Pro is Gemini 3 Pro Image.
How to use the image cost calculator
- Choose the output resolution: 0.5K (512px), 1K (1024px), 2K (2048px) or 4K.
- Enter how many images you need.
- Every model that supports that size is ranked by total cost.
How prices are calculated
Most image APIs charge a fixed price per image at each resolution. FLUX.2 bills per megapixel: the first megapixel at one rate and each additional one at a lower rate, rounded up. Quality settings matter too: GPT Image 2.5 costs 1,500% more at high than at low. Where the maker publishes no direct API price, Runway's API rate is shown and labeled.
Tips
- Find a composition on a low-quality or small model, then regenerate only the keepers at full quality.
- For web and social media, 1K is usually enough.
- Budget two to four attempts for detailed images with hands, text or recurring characters.