Overview
- Users can now set warmth, enthusiasm and emoji frequency to More, Less or Default from the Personalization menu.
- New controls also adjust formatting, letting people nudge responses toward headers and lists or simpler paragraphs.
- OpenAI positions the change as tone-only, stating it does not alter reasoning in models such as GPT-5.1 and GPT-5.2.
- Review testing reports the settings appearing on both free and paid accounts across web, desktop and mobile, though full rollout remains unconfirmed.
- The feature builds on November’s style presets and follows a year of tone tweaks and safety scrutiny, with OpenAI updating under‑18 guidance as competitors like Anthropic and Google offer similar steerability.