OpenAI launches ChatGPT-5.1: CEO Sam Altman says it brings intelligence and style improvements

14 Nov 2025 | Category: Technology

OpenAI is releasing GPT-5.1, overhauling its flagship model with two smarter variants—GPT-5.1 Instant and GPT-5.1 Thinking—that promise warmer conversations and sharper instruction-following. The refresh arrives three months after GPT-5’s rocky August launch, when users complained the model felt cold and often fumbled tasks that older versions handled better. GPT-5.1 Instant powers most ChatGPT interactions with snappier, more natural dialogue, while GPT-5.1 Thinking tackles complex problems with extended reasoning. Both models promises to gauge question difficulty on the fly, devoting extra p

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