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

# Nov 29 and Dec 6, 2026 Model Deprecation Notice

> Novita retires deepseek/deepseek-v4-flash-vision-exp at 00:00 UTC on Nov 29, 2026 and tencent/hy4-preview at 00:00 UTC on Dec 6, 2026. Migrate to deepseek/deepseek-v4.1-flash and tencent/hy4 before the cutoff.

The following models will be retired from the Novita platform at the times listed below. If your application uses an affected model, please migrate to the recommended replacement model before the retirement time.

## Affected models

| Model ID | Retirement time | Replacement model |
| - | - | - |
| `deepseek/deepseek-v4-flash-vision-exp` | Nov 29, 2026, 00:00 UTC | `deepseek/deepseek-v4.1-flash` |
| `tencent/hy4-preview` | Dec 6, 2026, 00:00 UTC | `tencent/hy4` |

## Action required

After the retirement time, API requests to these models will return an error. Please migrate to the corresponding replacement model before the cutoff. If you need assistance, reach out to us via our **Discord** community or submit a support ticket.


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