📰 AI News: OpenAI Releases GPT-5.1, Warmer, Smarter, and Finally Better at Following Instructions
OpenAI just upgraded ChatGPT to GPT-5.1, bringing both intelligence improvements and a major personality shift. After three months of mixed reviews on GPT-5's cold, robotic tone, the company is responding with a model that's explicitly designed to be "warmer" and more conversational while actually following your instructions. The announcement: OpenAI released GPT-5.1 with two variants: GPT-5.1 Instant (the default, most-used model) and GPT-5.1 Thinking (the advanced reasoning model). The update began rolling out to paid users (Pro, Plus, Go, Business) on November 12, with free users getting access shortly after. CEO Sam Altman called it "a nice upgrade." The release comes three months after GPT-5 launched to significant user backlash. Early adopters found GPT-5 didn't perform better than previous models in key areas, and OpenAI's decision to initially sunset beloved older models created immediate dissatisfaction. GPT-5.1 appears designed to address both issues. What's being built: → GPT-5.1 Instant improvements: More conversational by default, better at following specific instructions (like "respond in exactly six words"), and now includes adaptive reasoning to decide when complex questions need deeper thinking → GPT-5.1 Thinking enhancements: Dynamically adjusts thinking time, spending more on complex problems while responding twice as fast on simple tasks, with less jargon and fewer undefined terms → Expanded personality presets: New options include Professional, Candid, and Quirky, joining refreshed versions of Default, Friendly (formerly Listener), Efficient (formerly Robot), plus unchanged Nerdy and Cynical → Granular customization: Experimental controls for conciseness, warmth, scannability, and emoji frequency, with ChatGPT proactively suggesting preference updates during conversations → Significant benchmark improvements: Notable gains on AIME 2025 and Codeforces math and coding evaluations thanks to adaptive reasoning