OpenAI Confirms Retirement of Popular AI Models Including GPT-4o, Announces GPT-5.2 as Replacement

OpenAI has confirmed the retirement of several AI models, including the popular GPT-4o, as well as GPT-5 Instant, GPT-5 Thinking, GPT-4.1, GPT-4.1 mini, and o4-mini. No specific deactivation date has been provided. These models will be replaced by newer versions, notably GPT-5.2, which is presented as sufficient for current needs. The announcement affects ChatGPT users and integrations via OpenAI’s API. Technical details about the improvements in GPT-5.2 or the exact reasons for the retirement have not been specified.