Retiring GPT-4o, GPT-4.1, GPT-4.1 mini, and OpenAI o4-mini in ChatGPT
rd Thursday, January 29, 2026
Summary
OpenAI has announced it is retiring GPT-4 and older models, focusing on its latest language model, GPT-5. The company cites the need to improve the safety and reliability of its AI systems as the primary reason for this decision.
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openai.com