Product Review: RIP, 4o: OpenAI Officially Kills Its Popular ChatGPT Model

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Details: Written by CNET Reviews; Category: Reviews; Published: 13 February 2026; Created: 13 February 2026; Last Updated: 13 February 2026

OpenAI is killing its ultra-popular GPT-4o and several of its older models -- for real this time. The AI company announced at the beginning of February that it planned to retire GPT-5, GPT-4o, GPT-4.1, GPT-4.1 mini and o4-mini.

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