> ## 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.

# Oct 29, 2026 Model Deprecation Notice

> Novita retires the baidu/ernie-4.5-21B-a3b large language model at 08:00 UTC on Oct 29, 2026. Migrate to deepseek/deepseek-v4.1-flash before the cutoff.

As we release better and more powerful models, we routinely retire older ones. We plan to take `baidu/ernie-4.5-21B-a3b` offline at **08:00 UTC on October 29, 2026**. At that point, the model will officially be taken out of service, so please complete your migration to the recommended replacement model, `deepseek/deepseek-v4.1-flash`, before then.

## Affected models

| Model ID | Retirement time | Replacement model | Notes |
| - | - | - | - |
| `baidu/ernie-4.5-21B-a3b` | Oct 29, 2026, 08:00 UTC | `deepseek/deepseek-v4.1-flash` | |

## Action required

If your application uses the affected model, please migrate to `deepseek/deepseek-v4.1-flash` before the retirement time.


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