OpenAI o4-mini

Assess

Platforms

A compact OpenAI reasoning model used in ChatGPT.

Why it's here

Placed in Assess: 1 article(s) of evidence from 1 source(s), led by model releases, with 0 in the last 30 days. Confidence 24%. Low accumulated evidence, so it defaults conservatively pending more signal.

Evidence (1)

6OpenAI Blog·1/29/2026model_release
OpenAI to retire GPT-4o, GPT-4.1, GPT-4.1 mini, and o4-mini in ChatGPT
OpenAI says it will retire GPT-4o, GPT-4.1, GPT-4.1 mini, and OpenAI o4-mini from ChatGPT on February 13, 2026, following the previously announced retirement of GPT-5 variants. The company says there are no API changes at this time, so the update affects ChatGPT usage rather than developer access.