# Qwen-Image 2.1 (evaluation)

Evaluation only (Qwen Research License): text to image and editing with up to 10 reference images and a mask, native transparent output, 2048x2048 by default.

Model id: `qwen-image-2.1`
Quantization: bf16
Regions: ATL
Hugging Face: [Qwen/Qwen-Image-2.1](https://huggingface.co/Qwen/Qwen-Image-2.1)

## Inputs

- text
- image: formats png, jpeg, webp; references type: integer, min: 1, max: 10

## Output: image

| Parameter | Type | Values | Default |
| --- | --- | --- | --- |
| `size` | any |  |  |
| `aspect_ratio` | string | 1:1, 4:3, 3:4, 3:2, 2:3, 16:9, 9:16 | 1:1 |
| `resolution` | string | 768, 1K, 1.5K, 2K |  |
| `n` | integer | 1–4 | 1 |
| `response_format` | string | url, b64_json | url |
| `seed` | integer |  |  |
| `steps` | integer | 6, 20–50 | 6 |
| `output_format` | string | png, jpeg, webp | png |
| `background` | string | auto, opaque, transparent | auto |
| `output_compression` | integer | 0–100 |  |

## Endpoints

- [`POST /v1/images/generations`](/docs/reference/create-image.md): Create Image
- [`POST /v1/images`](/docs/reference/create-image-openrouter.md): Generate Image (OpenRouter)
- [`POST /v1/images/edits`](/docs/reference/create-image-edit.md): Edit Image