# gpt-4-0125-preview

Calls to the model gpt-4-0125-preview on OpenAI stopped working on March 26, 2026.

- API: OpenAI (api.openai.com)
- Model: gpt-4-0125-preview
- Kind: Model retirement
- Takes effect: March 26, 2026
- Calls after that day: fail
- Calls it hits: `model gpt-4-0125-preview`
- Source: [Deprecations page](https://developers.openai.com/api/docs/deprecations)
- Page: https://www.okapi.bot/models/openai/gpt-4-0125-preview/

## What to use instead

Move to gpt-5.6-sol. gpt-5, named first, stops working on 2026-12-11. gpt-4.1, named first, stops working on 2027-01-14.