# o1-pro

Calls to the model o1-pro on OpenAI stop working on October 23, 2026.

On October 23, 2026, the model o1-pro will be retired. Calls targeting model o1-pro will fail after that day. Plan your transitions before the shutdown takes effect.

- API: OpenAI (api.openai.com)
- Model: o1-pro
- Kind: Model retirement
- Takes effect: October 23, 2026
- Calls after that day: fail
- Calls it hits: `model o1-pro`
- Source: [Deprecations page](https://developers.openai.com/api/docs/deprecations)
- Page: https://www.okapi.bot/models/openai/o1-pro/

## What to use instead

Move to gpt-5.6-sol (reasoning.mode: pro), which is recommended by OpenAI.