> ## Documentation Index
> Fetch the complete documentation index at: https://docs.wizzx.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# GPT Image 2.5

> Generate or edit one image with GPT Image 2.5 at 1K, 2K, or 4K

## GPT Image 2.5

GPT Image 2.5 uses the same model key for generation and editing. Omit `image_urls` for text-to-image, or provide up to 16 reference images for image-to-image editing.

Choose a `version` for the job. Both versions cost the same:

* `flare` (default): faster output for everyday generation.
* `sunburst`: finer edits, suited to product shots, ad creatives, and multi-turn editing.

### Request parameters

| Parameter | Required | Accepted values |
| - | - | - |
| `prompt` | Yes | Non-blank UTF-8 text, maximum 20,000 bytes at the gateway |
| `version` | No | `flare` (default) or `sunburst` |
| `image_urls` | No | 1–16 HTTP(S) URLs or base64 data URIs (`data:image/jpeg`, `data:image/png`, or `data:image/webp`). JPEG, PNG, and WebP only |
| `aspect_ratio` | No | `auto` (default), `1:1`, `16:9`, `9:16`, `4:3`, `3:4`, `3:2`, `2:3`, `5:4`, `4:5`, `21:9` |
| `resolution` | No | `1K` (default), `2K`, `4K` (case-insensitive) |

GPT Image 2.5 does not accept `quality`, `output_format`, `n`, or `background`.

```json theme={null}
{
  "prompt": "A product shot of a glass perfume bottle on wet black stone, soft rim light",
  "version": "sunburst",
  "image_urls": ["https://example.com/bottle.png"],
  "aspect_ratio": "4:5",
  "resolution": "2K"
}
```

Submit to `POST /api/v1/task/submit/gpt-image-2.5`. Save the returned `data.task_id` and poll `/api/v1/task/status`.

### Pricing

| Resolution | Credits per image |
| - | - |
| 1K | 13 |
| 2K | 21 |
| 4K | 32 |

<Note>
  Each request produces one image. `version`, `aspect_ratio`, and reference images do not change the price. `/pricing` remains the current source of truth.
</Note>

See the [GPT Image 2.5 API reference](/api-reference/endpoint/submit-gpt-image-2-5) for the machine-readable Schema.