Vertex AI
qwen3-235b-a22b-instruct-2507-maas model retirement
Stopped workingSubscribe to Vertex AIShare
On October 21, 2026, the model qwen3-235b-a22b-instruct-2507-maas was retired on Vertex AI following its deprecation on July 21, 2026. Requests targeting this model fail since that date. The change affects all calls referencing the qwen3-235b-a22b-instruct-2507-maas identifier on aiplatform.googleapis.com.
The error you get
What Vertex AI answers a call to qwen3-235b-a22b-instruct-2507-maas once the model is gone, as recorded from real responses:
{"error":{"code":404,"message":"Publisher model `projects/{project}/locations/{region}/publishers/google/models/qwen3-235b-a22b-instruct-2507-maas` was not found or your project does not have access to it. Ensure you are using a valid model name and that the model is available in the specified region.","status":"NOT_FOUND"}}What to use instead of qwen3-235b-a22b-instruct-2507-maas
To replace it, follow the recommended alternative to Self-deploy Qwen3 on Model Garden.
In Vertex AI's words
Model ID: qwen3-235b-a22b-instruct-2507-maas; Deprecation date: July 21, 2026; Retirement date: October 21, 2026; Self-deploy alternative: Self-deploy Qwen3 on Model Garden
Facts
- API
- Vertex AI
aiplatform.googleapis.com - Model
qwen3-235b-a22b-instruct-2507-maas- Released
- August 13, 2025 (models.dev)
- Kind
- Model retirement
- Announced
- July 21, 2026
- Takes effect
- October 21, 2026
- Calls after that day
- Fail
- Source
- Deprecations page
- Last updated
- Verified
- , against Vertex AI's own pages
Questions
When does qwen3-235b-a22b-instruct-2507-maas shut down?
Calls to the model qwen3-235b-a22b-instruct-2507-maas on Vertex AI stopped working on October 21, 2026.
What happens to calls after October 21, 2026?
They have failed since October 21, 2026.
What error does qwen3-235b-a22b-instruct-2507-maas return once it is shut down?
Vertex AI answers HTTP 404: "Publisher model `projects/{project}/locations/{region}/publishers/google/models/qwen3-235b-a22b-instruct-2507-maas` was not found or your project does not have access to it. Ensure you are using a valid model name and that the model is available in the specified region.". Send another model to fix it.
When was qwen3-235b-a22b-instruct-2507-maas released?
qwen3-235b-a22b-instruct-2507-maas was released on August 13, 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.
qwen3-235b-a22b-instruct-2507-maas on other APIs 1
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No date
Vertex AI
qwen/qwen3-235b-a22b-instruct-2507-maasModel retirement Deprecated, no date
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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.