# baidu/ernie-4.5-21b-a3b-thinking

Calls to the model baidu/ernie-4.5-21b-a3b-thinking on Novita AI stopped working on May 22, 2026.

- API: Novita AI (api.novita.ai)
- Model: baidu/ernie-4.5-21b-a3b-thinking
- Kind: Model retirement
- Takes effect: May 22, 2026
- Calls after that day: fail
- Calls it hits: `model baidu/ernie-4.5-21b-a3b-thinking`
- Source: [Model notices](https://novita.ai/docs/llms-full.txt#deprecation-notice)
- Page: https://www.okapi.bot/models/novita-ai/baidu/ernie-4.5-21b-a3b-thinking/

## What to use instead

Move to qwen/qwen3.5-35b-a3b, qwen/qwen3.6-35b-a3b, recommended by Novita.