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

# Image generation

## Bailian Qwen-Image series

Generate images with Tongyi Qwen Bailian Qwen-Image models. Supports prompt refinement and strong Chinese-style semantics.

***

### Basics

* **Endpoint**: `POST /v1/images/generations`
* **Auth**: `Bearer Token`
* **Content-Type**: `application/json`

### Model overview

| **Model**                            | **Summary**                                                                                                            | **Output**                                                                   |
| ------------------------------------ | ---------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------- |
| wan2.6-t2i `**recommended**`         | Wanxiang 2.6—free size within total pixel and aspect constraints (same idea as 2.5)                                    | Resolution: total pixels in \[1280×1280, 1440×1440]; aspect \[1:4, 4:1]; PNG |
| wan2.5-t2i-preview `**recommended**` | Wanxiang 2.5 preview—flexible sizing within pixel/aspect bounds (e.g. 768×2700; 2.2 and below cap single side at 1400) |                                                                              |
| wan2.2-t2i-flash                     | Wanxiang 2.2 flash—\~50% faster than 2.1                                                                               | Resolution: both sides in \[512, 1440]; PNG                                  |
| wan2.2-t2i-plus                      | Wanxiang 2.2 plus—better stability vs 2.1                                                                              |                                                                              |
| wanx2.1-t2i-turbo                    | Wanxiang 2.1 flash                                                                                                     |                                                                              |
| wanx2.1-t2i-plus                     | Wanxiang 2.1 plus                                                                                                      |                                                                              |
| wanx2.0-t2i-turbo                    | Wanxiang 2.0 flash                                                                                                     |                                                                              |

### Request body

| Field                   | Type      | Required | Description                                                                                 |
| :---------------------- | :-------- | :------- | :------------------------------------------------------------------------------------------ |
| **model**               | `string`  | **Yes**  | e.g. `qwen-image-plus` or `qwen-image-max`.                                                 |
| **content**             | `string`  | **Yes**  | Image description text.                                                                     |
| **parameters**          | `object`  | No       | Generation controls.                                                                        |
| └─ **negative\_prompt** | `string`  | No       | Things to avoid.                                                                            |
| └─ **prompt\_extend**   | `boolean` | No       | AI prompt expansion (default true).                                                         |
| └─ **watermark**        | `boolean` | No       | Add watermark or not.                                                                       |
| └─ **size**             | `string`  | No       | e.g. `1328*1328`, `1024*1024`; width and height each 512–1440.                              |
| └─ **n**                | `integer` | No       | Number of images, 1–4, default `4`. Billed per image—use `1` for tests.                     |
| └─ **seed**             | `integer` | No       | Seed in `[0, 2147483647]`. Same seed tends to stabilize output but is not a hard guarantee. |

***

### Response

**200 OK**

| Field                  | Type      | Description                 |
| :--------------------- | :-------- | :-------------------------- |
| **created**            | `integer` | Unix timestamp.             |
| **data**               | `array`   | Results.                    |
| └─ **url**             | `string`  | Download URL.               |
| └─ **b64\_json**       | `string`  | Base64 if requested.        |
| └─ **revised\_prompt** | `string`  | Prompt after AI refinement. |

***

### Request example

```json theme={null}
{
    "model": "wan2.2-t2i-flash",
    "prompt": "A kitten running on grass, cinematic look, natural light and shadow",
    "parameters":{
        "size": "960*1390"
    }
}
```

### Response example

```json theme={null}
{
  "created": 1713833628,
  "data": [
    {
      "url": "https://example.com/qwen_output_image.png",
     	"b64_json": "",
      "revised_prompt": ""
    }
  ]
}
```

***

### Tips

1. **Chinese semantics**: Qwen is strong on idioms, couplets, and Chinese motifs (e.g. Yueyang Tower, blue-and-white porcelain).
2. **Prompt extend**: Keeping `prompt_extend: true` usually yields richer detail.