Together AI
qwen/qwen3.5-35b-a3b-base model retirement
Stopped workingSubscribe to Together AIShare
On September 11, 2026, Together AI retired model qwen/qwen3.5-35b-a3b-base. Calls targeting this model fail since that day. Requests are no longer served under the retired base identifier.
What to use instead of qwen/qwen3.5-35b-a3b-base
Update requests to use Qwen/Qwen3.5-35B-A3B, which is the replacement recommended by Together AI.
In Together AI's words
Removal date: 2026-09-11; Model: Qwen/Qwen3.5-35B-A3B-Base; Suggested replacement: Qwen/Qwen3.5-35B-A3B
Facts
- API
- Together AI
api.together.xyz - Model
qwen/qwen3.5-35b-a3b-base- Released
- February 24, 2026 (models.dev)
- Kind
- Model retirement
- Takes effect
- September 11, 2026
- Calls after that day
- Fail
- Source
- Deprecations page
- Last updated
- Verified
- , against Together AI's own pages
Questions
When does qwen/qwen3.5-35b-a3b-base shut down?
Calls to the model qwen/qwen3.5-35b-a3b-base on Together AI stopped working on September 11, 2026.
What happens to calls after September 11, 2026?
They have failed since September 11, 2026.
When was qwen/qwen3.5-35b-a3b-base released?
qwen/qwen3.5-35b-a3b-base was released on February 24, 2026, 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.