OpenAI Retires GPT-4o, GPT-4.1, and o4-mini from ChatGPT as Model Consolidation Accelerates

Summary

On February 13, OpenAI retired GPT-4o, GPT-4.1, GPT-4.1 mini, and o4-mini from ChatGPT, alongside previously announced retirements of GPT-5 (Instant, Thinking, and Pro). The company stated that most users have already shifted to GPT-5.2 and that user feedback from the GPT-4o community directly shaped improvements in GPT-5.1 and GPT-5.2, particularly around personality, creative ideation support, and response customization. Importantly, API access remains unchanged for now — the retirements apply