# Image generation API price per image

> Image generation API price per image on Outrun: 7 image models from $0.02 per image on one prepaid key and USD balance. Prices as of 2026-10-29.

Outrun image models cost from $0.02 per image (GPT Image 2.5 Flare and GPT Image 2.5 Sunburst) to $0.09. Each of the 7 image models bills a flat price per image from one prepaid USD balance and one API key.

Prices as of 2026-10-29 16:34 ET, from the live price feed.

[Get your API key](https://outrun.to/overview)[All image prices](https://outrun.to/image-api#prices)

$0.10 free API credit for eligible new accounts.

7 image models on one Outrun key

12 images × $0.02 = **$0.18**

GPT Image 2.5 Flare, the lowest price per image.

## How is image generation billed?

Flat per image, so the cost is easy to predict before you send.

- **1**image = one flat price, whatever the prompt length
- **×10**ten images cost ten times the price; the table shows both
- **1 key**the same key and USD balance as every text and video model

## How much does each image model cost?

Every image model, sorted by price per image. Models with several sizes have one row per size.

| Model | Size | Per image | 10 images |
| --- | --- | --- | --- |
| [GPT Image 2.5 Flare](https://outrun.to/model/gpt-image-2.5-flare) `gpt-image-2.5-flare` | Standard | $0.02 | $0.15 |
| [GPT Image 2.5 Sunburst](https://outrun.to/model/gpt-image-2.5-sunburst) `gpt-image-2.5-sunburst` | Standard | $0.02 | $0.15 |
| [Nano Banana / Gemini 3.1 Flash Image](https://outrun.to/model/gemini-3.1-flash-image) `gemini-3.1-flash-image` | Standard | $0.03 | $0.27 |
| [Nano Banana Pro / Gemini 3 Pro Image](https://outrun.to/model/gemini-3-pro-image) `gemini-3-pro-image` | Standard | $0.04 | $0.36 |
| [Seedream 5 Pro](https://outrun.to/model/doubao-seedream-5-0-pro) `doubao-seedream-5-0-pro` | 1K | $0.05 | $0.43 |
| [GPT Image 2](https://outrun.to/model/gpt-image-2) `gpt-image-2` | Standard | $0.06 | $0.60 |
| [Grok Imagine Image](https://outrun.to/model/grok-imagine-image) `grok-imagine-image` | Standard | $0.06 | $0.60 |
| [Seedream 5 Pro](https://outrun.to/model/doubao-seedream-5-0-pro) `doubao-seedream-5-0-pro` | 2K | $0.09 | $0.86 |

Prices as of 2026-10-29 16:34 ET, from the live price feed. Flat price per image; 10 images = 10 x the price.

## How do I send an image request?

This is the example from the API reference. GPT Image 2 and Grok Imagine Image use the same request shape.

Request example

```
curl https://api.outrun.to/v1/images/generations \
  -H "Authorization: Bearer $OUTRUN_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "gemini-3-pro-image", "prompt": "A lighthouse at dawn, oil painting", "size": "16:9"}'

# Response: {"created": 1790000000, "data": [{"b64_json": "<base64 PNG>"}], "usage": {...}}
```

## Image API questions

Less-restricted image models are on the [uncensored image API](https://outrun.to/uncensored-image-api) page.

### How much does an image generation API cost per image?

On Outrun, image models cost from $0.02 to $0.09 per image, depending on the model and size. The table lists every image model.

### How is image generation billed?

At a flat price per generated image, from your prepaid USD balance. There is no subscription.

### Do Gemini image models return more than one image?

No. Gemini image models return one image per request.

### Do I need a separate account for each image model?

No. One Outrun key and one prepaid USD balance cover every image model and every other model on Outrun.

### Will I get the model I pay for?

The model you pay for is the model that answers. Outrun never swaps in a cheaper model.

### Does Outrun keep my prompts or images?

Outrun does not store your prompts, images or outputs unless you choose to save them.

## Related pages

- [Video **Video API prices**](https://outrun.to/video-api-pricing)
- [Images **Uncensored image API**](https://outrun.to/uncensored-image-api)
- [Billing **Pay with crypto**](https://outrun.to/pay-with-crypto)
- [Pricing **All model prices**](https://outrun.to/discounted-ai-api)
- [Docs **Image setup guide**](https://outrun.to/docs/setup/images)
- [Dashboard **Get your API key**](https://outrun.to/overview)

---
Source: https://outrun.to/image-api
Outrun: https://outrun.to/ | API base: https://api.outrun.to/v1 | Prices (JSON): https://api.outrun.to/pricing | Docs: https://outrun.to/docs/