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

# Appendix

### Maximum prompt length

The maximum prompt length depends on the model.

| Models                                                                                                                                                                                                                                                                                                       | Limit |
| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ----- |
| Recraft V4.1<br />Recraft V4.1 Vector<br />Recraft V4.1 Pro<br />Recraft V4.1 Pro Vector<br />Recraft V4.1 Utility<br />Recraft V4.1 Utility Vector<br />Recraft V4.1 Utility Pro<br />Recraft V4.1 Utility Pro Vector<br />Recraft V4<br />Recraft V4 Vector<br />Recraft V4 Pro<br />Recraft V4 Pro Vector | 10000 |
| Recraft V3<br />Recraft V3 Vector<br />Recraft V2<br />Recraft V2 Vector                                                                                                                                                                                                                                     | 1000  |

### List of supported image sizes

The image size can be specified using one of two formats:

* Explicit dimensions (`WxH`): defines the exact width (`W`) and height (`H`) of the output image in pixels. Example: `1820x1024`.
* Aspect ratio (`w:h`): defines the proportional relationship between width and height without specifying absolute dimensions. Example: `16:9`.

See [Wikipedia](https://en.wikipedia.org/wiki/Aspect_ratio_\(image\)) for more details.

The set of valid aspects and size values depends on the selected model. Refer to the table below for supported configurations.

<table>
  <thead>
    <tr>
      <th>Models</th>
      <th>Aspect</th>
      <th>Size</th>
    </tr>
  </thead>

  <tbody>
    <tr>
      <td rowspan="14">Recraft V4.1<br />Recraft V4.1 Utility<br />Recraft V4</td>
      <td>`1:1`</td><td>`1024x1024`</td>
    </tr>

    <tr><td>`2:1`</td><td>`1536x768`</td></tr>
    <tr><td>`1:2`</td><td>`768x1536`</td></tr>
    <tr><td>`3:2`</td><td>`1280x832`</td></tr>
    <tr><td>`2:3`</td><td>`832x1280`</td></tr>
    <tr><td>`4:3`</td><td>`1216x896`</td></tr>
    <tr><td>`3:4`</td><td>`896x1216`</td></tr>
    <tr><td>`5:4`</td><td>`1152x896`</td></tr>
    <tr><td>`4:5`</td><td>`896x1152`</td></tr>
    <tr><td>`6:10`</td><td>`832x1344`</td></tr>
    <tr><td>`14:10`</td><td>`1280x896`</td></tr>
    <tr><td>`10:14`</td><td>`896x1280`</td></tr>
    <tr><td>`16:9`</td><td>`1344x768`</td></tr>
    <tr><td>`9:16`</td><td>`768x1344`</td></tr>

    <tr>
      <td rowspan="14">Recraft V4.1 Pro<br />Recraft V4.1 Utility Pro<br />Recraft V4 Pro</td>
      <td>`1:1`</td><td>`2048x2048`</td>
    </tr>

    <tr><td>`2:1`</td><td>`3072x1536`</td></tr>
    <tr><td>`1:2`</td><td>`1536x3072`</td></tr>
    <tr><td>`3:2`</td><td>`2560x1664`</td></tr>
    <tr><td>`2:3`</td><td>`1664x2560`</td></tr>
    <tr><td>`4:3`</td><td>`2432x1792`</td></tr>
    <tr><td>`3:4`</td><td>`1792x2432`</td></tr>
    <tr><td>`5:4`</td><td>`2304x1792`</td></tr>
    <tr><td>`4:5`</td><td>`1792x2304`</td></tr>
    <tr><td>`6:10`</td><td>`1664x2688`</td></tr>
    <tr><td>`14:10`</td><td>`2560x1792`</td></tr>
    <tr><td>`10:14`</td><td>`1792x2560`</td></tr>
    <tr><td>`16:9`</td><td>`2688x1536`</td></tr>
    <tr><td>`9:16`</td><td>`1536x2688`</td></tr>

    <tr>
      <td rowspan="14">Recraft V2<br />Recraft V3</td>
      <td>`1:1`</td><td>`1024x1024`</td>
    </tr>

    <tr><td>`2:1`</td><td>`2048x1024`</td></tr>
    <tr><td>`1:2`</td><td>`1024x2048`</td></tr>
    <tr><td>`3:2`</td><td>`1536x1024`</td></tr>
    <tr><td>`2:3`</td><td>`1024x1536`</td></tr>
    <tr><td>`4:3`</td><td>`1365x1024`</td></tr>
    <tr><td>`3:4`</td><td>`1024x1365`</td></tr>
    <tr><td>`5:4`</td><td>`1280x1024`</td></tr>
    <tr><td>`4:5`</td><td>`1024x1280`</td></tr>
    <tr><td>`6:10`</td><td>`1024x1707`</td></tr>
    <tr><td>`14:10`</td><td>`1434x1024`</td></tr>
    <tr><td>`10:14`</td><td>`1024x1434`</td></tr>
    <tr><td>`16:9`</td><td>`1820x1024`</td></tr>
    <tr><td>`9:16`</td><td>`1024x1820`</td></tr>

    <tr>
      <td rowspan="14">Recraft V4.1 Vector<br />Recraft V4.1 Pro Vector<br />Recraft V4.1 Utility Vector<br />Recraft V4.1 Utility Pro Vector<br />Recraft V4 Vector<br />Recraft V4 Pro Vector<br />Recraft V3 Vector<br />Recraft V2 Vector</td>
      <td colspan="2" align="center">`1:1`</td>
    </tr>

    <tr><td colspan="2" align="center">`2:1`</td></tr>
    <tr><td colspan="2" align="center">`1:2`</td></tr>
    <tr><td colspan="2" align="center">`3:2`</td></tr>
    <tr><td colspan="2" align="center">`2:3`</td></tr>
    <tr><td colspan="2" align="center">`4:3`</td></tr>
    <tr><td colspan="2" align="center">`3:4`</td></tr>
    <tr><td colspan="2" align="center">`5:4`</td></tr>
    <tr><td colspan="2" align="center">`4:5`</td></tr>
    <tr><td colspan="2" align="center">`6:10`</td></tr>
    <tr><td colspan="2" align="center">`14:10`</td></tr>
    <tr><td colspan="2" align="center">`10:14`</td></tr>
    <tr><td colspan="2" align="center">`16:9`</td></tr>
    <tr><td colspan="2" align="center">`9:16`</td></tr>
  </tbody>
</table>

### Policies

* All generated images are currently stored for approx. 24 hours, this policy may change in the future, and you should not rely on it remaining constant.
* Images are publicly accessible via direct links without authentication. However, since the URLs include unique image identifiers and are cryptographically signed, restoring lost links is nearly impossible.
* Currently, image generation rates are defined on a per-user basis and set at **100 images per minute**. In addition, requests are limited to **5 per second**. These rate limits may be adjusted in the future.

Need help or have suggestions for improving our docs? [Contact support](mailto:\[help@recraft.ai]\(mailto:help@recraft.ai\))