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GPT-5.1 Thinking

Product2 stories

  1. AI toolsReach 48

    Perplexity brings OpenAI's new GPT-5.1 to paid users

    Perplexity just added OpenAI's brand-new GPT-5.1 to its search engine for Pro and Max subscribers. Paid users get immediate access to both GPT-5.1 Instant for rapid daily chats and GPT-5.1 Thinking for heavy reasoning. Perplexity's CEO also teased that Moonshot AI's Kimi K2 is coming soon.

  2. AI modelsReach 53

    OpenAI drops GPT-5.1 with adaptive reasoning and tone controls

    OpenAI just rolled out GPT-5.1, upgrading both its Instant and Thinking models with warmer conversational tones and smarter pacing. Instant now adapts its thinking time based on question difficulty, while new granular tone presets let users shape ChatGPT's personality. Paid users get access first, with API availability arriving later this week.