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OpenAI · Model retirement

gpt-4-0125-preview

Stopped working

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

What to use instead of gpt-4-0125-preview

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.

Facts

API
OpenAI api.openai.com
Model
gpt-4-0125-preview
Kind
Model retirement
Takes effect
March 26, 2026
Calls after that day
Fail
Source
Deprecations page
Last updated

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