OpenAI says the brand-new GPT-5.1 is warmer and with more personality options
OpenAI has launched GPT-5.1, an upgrade to its GPT-5 model, featuring enhanced personality options and improved performance. The new models, GPT-5.1 Instant and GPT-5.1 Thinking, offer better instruction following and faster task completion. Users can now choose from various conversational tones, including Default, Professional, Friendly, Candid, Quirky, Efficient, Nerdy, and Cynical. Despite the improvements, the initial release of GPT-5 faced criticism for its incremental updates, leading to the reintroduction of GPT-4.0 as an option. Meanwhile, Microsoft, OpenAI's partner, has turned to Anthropic's models for its Copilot services.