AI Image Generation API Pricing
Official API prices for 5 image generation models: GPT Image, Nano Banana. Most image models are billed per generated image, so the table also shows what 1,000 images cost. GPT Image 2 is billed by image tokens instead, so it is not ranked.
Prices checked Oct 11, 2026
Models
5
Lowest price
$0.0336/image
Nano Banana Lite
Unit
Per image
Prices checked
Oct 11, 2026
Official image generation API prices
Sorted from cheapest to most expensive. Ranges mean the price depends on resolution or quality; the 1,000 images column uses the official rate.
| Model | Provider | Official price | 1,000 images |
|---|---|---|---|
| Nano Banana Lite | Google Gemini API | $0.0336/image | $33.60 |
| Nano Banana | Google Gemini API | $0.039/image | $39.00 |
| Nano Banana 2 | Google Gemini API | $0.045–$0.151/image | $45.00–$151.00 |
| Nano Banana Pro | Google Gemini API | $0.134–$0.24/image | $134.00–$240.00 |
| GPT Image 2 | OpenAI API | $30 per 1M image tokens | — |
Image generation API pricing FAQ
What is the cheapest image generation API?
Nano Banana Lite on the official Google Gemini API has the lowest official price at $0.0336/image, or $33.60 for 1,000 images. Official rates listed here run from $0.0336 to $0.24 per image.
Why do some image API prices show a range?
The official price depends on the output settings. Higher resolution or higher quality cost more, so the table shows the lowest and highest official rate.
Are image generation APIs included in ChatGPT Plus or Google AI Pro?
No. Consumer subscriptions such as ChatGPT Plus or Google AI Pro are billed separately from the developer APIs. API usage is pay-as-you-go through each provider's developer platform.
Related pricing
BiWu.Ai lists public API prices from official pricing pages for reference and does not sell API access. Prices can change without notice; check each provider's pricing page before you build on it.