""We heard clearly from users that great AI should not only be smart, but also enjoyable to talk to," the company said in its announcement. "GPT‑5.1 improves meaningfully on both intelligence and communication style." "We're also making it easier for you to shape ChatGPT's tone. Preferences on chat style vary - from person to person and even from conversation to conversation - so we're introducing more intuitive and effective controls so ChatGPT can better match the tone you want in responses.""
"The upstart's latest model drop consists of two variations: GPT‑5.1 Instant, "now warmer, more intelligent, and better at following your instructions," according to OpenAI, and GPT‑5.1 Thinking, "our advanced reasoning model, now easier to understand and faster on simple tasks, more persistent on complex ones.""
OpenAI released GPT-5.1 in two variants: GPT-5.1 Instant, tuned for warmer conversation and instruction following, and GPT-5.1 Thinking, aimed at advanced reasoning and persistence on complex tasks. The update adds new personas (Professional, Candid, Quirky) and renames previous settings to Efficient, Friendly, and Cynic while keeping Nerd unchanged. More intuitive tone controls let users shape ChatGPT's style across conversations. GPT-5.1 is gated for paying subscribers while GPT-5 remains available to free users. The model shows a slight increase in blunt observations about sex, violence, and mental health, raising dependence and moderation concerns.
Read at Theregister
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