# O3 Deep Research: Provider API status update

O3 Deep Research: Provider API status update. First seen 11 Sep 2026 Catalogues list a 200,000 tokens context window. 6 evidence links.

- Kind: Provider API status update
- Developer: OpenAI
- Confidence: Confirmed
- First seen: 2026-09-11T22:27:12.083Z
- Model: [O3 Deep Research](https://alexgetman.com/models/openai/o3-deep-research/)
- Canonical: https://alexgetman.com/signals/2026/09/11/o3-deep-research/

## Provider API status update

- Microsoft Foundry · o3-deep-research · 2025-06-26
- Model inference · Deprecated
- Retirement: 2026-11-19

## Evidence links

- [Azure Foundry · lifecycle](https://learn.microsoft.com/en-us/azure/foundry/concepts/model-lifecycle-retirement?view=azureml-api-2)
- [TrueFoundry · Azure catalogue](https://github.com/truefoundry/models/blob/main/providers/microsoft-foundry/o3-deep-research.yaml)
- [OpenCode · discovery](https://opencode.ai/data/openai/o3-deep-research)
- [models.dev · catalogue](https://models.dev/#o3-deep-research)
- [OpenAI · model index](https://developers.openai.com/api/docs/models/o3-deep-research)
- [OpenAI · deprecations](https://platform.openai.com/docs/deprecations)