OpenAI is killing off several AI models next month: Check out the list of legacy models going dark

OpenAI has announced that it is cutting access to several AI models from ChatGPT next month. The models getting the axe from 13 February include GPT-4o, GPT-4.1, GPT-4.1 mini, and OpenAI o4-mini.

In a blogpost about the removal of its AI models, OpenAI said that a vast majority of users have already shifted to GPT-5.2 and only about 0.1% of users still choose GPT-4o.