# gpt-4o

Calls to the model gpt-4o on Azure OpenAI stop working on October 1, 2027.

- API: Azure OpenAI (*.openai.azure.com)
- Model: gpt-4o
- Released: May 13, 2024 (models.dev)
- Kind: Model retirement
- Takes effect: October 1, 2027
- Calls after that day: fail
- Calls it hits: `model gpt-4o`
- Source: [Deprecations page](https://learn.microsoft.com/en-us/azure/ai-foundry/openai/concepts/model-retirements)
- Verified: November 6, 2026, against Azure OpenAI's own pages
- Page: https://www.okapi.bot/models/azure-openai/gpt-4o/

## Azure OpenAI's words

> Model: gpt-4o; Version: 2024-08-06; Training retirement date: No earlier than 2027-04-01 1; Deployment retirement date: 2027-10-01

Okapi finds the calls this change hits in your repo and opens the pull request with the fix: https://github.com/apps/okapi-agent