# gpt-4.5-preview

Calls to the model gpt-4.5-preview on OpenAI stopped working on July 14, 2025.

- API: OpenAI (api.openai.com)
- Model: gpt-4.5-preview
- Kind: Model retirement
- Takes effect: July 14, 2025
- Calls after that day: fail
- Calls it hits: `model gpt-4.5-preview`
- Source: [Deprecations page](https://developers.openai.com/api/docs/deprecations)
- Page: https://www.okapi.bot/models/openai/gpt-4.5-preview/

## What to use instead

Move to gpt-6-luna. gpt-4.1, named first, stops working on 2027-01-14.