Azure AI Foundry
gpt-5-chat model retirement
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On May 13, 2026, model gpt-5-chat was retired on Azure AI Foundry. Calls using this model fail since that date. The change affects version 2025-10-03 directly.
What to use instead of gpt-5-chat
Migrate to gpt-chat-latest, which is named first, though it stops working on November 17, 2026. No replacement that holds is named yet.
In Azure AI Foundry's words
Model: gpt-5-chat; Version: 2025-10-03; Lifecycle: Retired; Retirement date: 2026-05-13; Replacement: gpt-chat-latest
Facts
- API
- Azure AI Foundry
*.services.ai.azure.com - Model
gpt-5-chat- Released
- August 7, 2025 (models.dev)
- Kind
- Model retirement
- Takes effect
- May 13, 2026
- Calls after that day
- Fail
- Source
- Deprecations page
- Last updated
- Verified
- , against Azure AI Foundry's own pages
Questions
When does gpt-5-chat shut down?
Calls to the model gpt-5-chat on Azure AI Foundry stopped working on May 13, 2026.
What happens to calls after May 13, 2026?
They have failed since May 13, 2026.
When was gpt-5-chat released?
gpt-5-chat was released on August 7, 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.