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

OpenAI announced on February 13, 2026, that it will retire GPT-4o, GPT-4.1, GPT-4.1 mini, and OpenAI o4-mini from ChatGPT, continuing its model transition strategy alongside the previously announced retirement of GPT-5 variants. The retirement affects only the ChatGPT interface, with no changes currently planned for the API. This means developers using these models through OpenAI's application programming interface will continue to have access, while regular ChatGPT users will need to transition to newer models. The move represents OpenAI's ongoing effort to streamline its offerings and focus on more advanced versions, though the company has not specified what replacement models will be available for ChatGPT users after the retirement date. This retirement comes as part of OpenAI's regular model lifecycle management, where older versions are phased out to make way for newer, more capable iterations.