Novita AI
baidu/ernie-4.5-21b-a3b-thinking model retirement
Stopped workingSubscribe to Novita AIShare
On May 22, 2026, the model baidu/ernie-4.5-21b-a3b-thinking was retired on Novita AI. Calls targeting model baidu/ernie-4.5-21b-a3b-thinking fail since that date. Novita AI marked it as a deprecated model and stopped serving requests sent to it.
What to use instead of baidu/ernie-4.5-21b-a3b-thinking
Switch to recommended alternatives qwen/qwen3.5-35b-a3b or qwen/qwen3.6-35b-a3b.
In Novita AI's words
Deprecated model: baidu/ernie-4.5-21B-a3b-thinking; Recommended alternatives: qwen/qwen3.5-35b-a3b, qwen/qwen3.6-35b-a3b
Facts
- API
- Novita AI
api.novita.ai - Model
baidu/ernie-4.5-21b-a3b-thinking- Released
- March 16, 2025 (models.dev)
- Kind
- Model retirement
- Takes effect
- May 22, 2026
- Calls after that day
- Fail
- Source
- Model notices
- Last updated
- Verified
- , against Novita AI's own pages
Questions
When does baidu/ernie-4.5-21b-a3b-thinking shut down?
Calls to the model baidu/ernie-4.5-21b-a3b-thinking on Novita AI stopped working on May 22, 2026.
What happens to calls after May 22, 2026?
They have failed since May 22, 2026.
When was baidu/ernie-4.5-21b-a3b-thinking released?
baidu/ernie-4.5-21b-a3b-thinking was released on March 16, 2025, according to models.dev.
How do I find the calls this hits in my code?
Okapi reads your repository, finds the calls this change hits and opens a pull request with the fix. It never commits to your branches: every change comes as a pull request you review.
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You fixed this one by hand.
Okapi opens the pull request with the fix before the next breaking change reaches your code.