o1-preview

o1-preview (OpenAI) was shut down on Jul 28, 2025; calls to it fail. OpenAI recommends o3 instead.

Provider

OpenAI

Shutdown

Jul 28, 2025 (already shut down)

Announced

Apr 28, 2025

Replace with

o3

Also written as

o1-preview-2024-09-12

Source: https://developers.openai.com/api/docs/deprecations · report a wrong date