Azure AI Foundry
gpt-4.1-nano model retirement
Stops workingSubscribe to Azure AI FoundryShare
Calls to the model gpt-4.1-nano on Azure AI Foundry stop working on April 14, 2027.
In Azure AI Foundry's words
Model: gpt-4.1-nano; Version: 2025-04-14; Lifecycle: Deprecated; Retirement date: 2027-04-14; Replacement: —
Facts
- API
- Azure AI Foundry
*.services.ai.azure.com - Model
gpt-4.1-nano- Released
- April 14, 2025 (models.dev)
- Kind
- Model retirement
- Takes effect
- April 14, 2027
- Calls after that day
- Fail
- Source
- Deprecations page
- Last updated
- Verified
- , against Azure AI Foundry's own pages
Questions
When does gpt-4.1-nano shut down?
Calls to the model gpt-4.1-nano on Azure AI Foundry stop working on April 14, 2027.
What happens to calls after April 14, 2027?
They fail from that day.
When was gpt-4.1-nano released?
gpt-4.1-nano was released on April 14, 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.
gpt-4.1-nano on other APIs 2
-
OpenAI
gpt-4.1-nanoModel retirement Stopped working -
Azure OpenAI
gpt-4.1-nanoModel retirement Stops workingin 342 days
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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 April 14, 2027.