# o3-deep-research

Calls to the model o3-deep-research on Azure AI Foundry stop working on November 19, 2026.

On November 19, 2026, the model o3-deep-research will be retired. Calls targeting this model will fail after that day. Update any integrations relying on it before the retirement date.

## What to use instead

Move to gpt-5.6-sol, recommended by Microsoft.

- API: Azure AI Foundry (*.services.ai.azure.com)
- Model: o3-deep-research
- Kind: Model retirement
- Takes effect: November 19, 2026
- Calls after that day: fail
- Calls it hits: `model o3-deep-research`
- Source: [Deprecations page](https://learn.microsoft.com/en-us/azure/foundry/openai/concepts/model-retirement-schedule)
- Verified: October 29, 2026, against Azure AI Foundry's own pages
- Page: https://www.okapi.bot/models/azure-ai-foundry/o3-deep-research/

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