Azure AI Foundry
gpt-5.3-codex model retirement
Stops workingSubscribe to Azure AI FoundryShare
Calls to the model gpt-5.3-codex on Azure AI Foundry stop working on August 24, 2027.
In Azure AI Foundry's words
Model: gpt-5.3-codex; Version: 2026-02-24; Lifecycle: GA; Retirement date: 2027-08-24; Replacement: —
Facts
- API
- Azure AI Foundry
*.services.ai.azure.com - Model
gpt-5.3-codex- Released
- February 5, 2026 (models.dev)
- Kind
- Model retirement
- Takes effect
- August 24, 2027
- Calls after that day
- Fail
- Source
- Deprecations page
- Last updated
- Verified
- , against Azure AI Foundry's own pages
Questions
When does gpt-5.3-codex shut down?
Calls to the model gpt-5.3-codex on Azure AI Foundry stop working on August 24, 2027.
What happens to calls after August 24, 2027?
They fail from that day.
When was gpt-5.3-codex released?
gpt-5.3-codex was released on February 5, 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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Is your code calling this?
Okapi finds the calls this change hits in your repo and opens the pull request with the fix before August 24, 2027.