Retiring GPT-4o, GPT-4.1, GPT-4.1 mini, and OpenAI o4-mini in ChatGPT

OpenAI announced the retirement of GPT-4o, GPT-4.1, GPT-4.1 mini, and OpenAI o4-mini from ChatGPT effective February 13, 2026. There are currently no changes to the API. This retirement impacts practitioners relying on these models for their applications, necessitating a transition to alternative models or frameworks.