Overview

• ChatGPT’s new friendlier tone is rolling out for the standard GPT-5 variant in web and mobile, while the higher‑capability Thinking model remains unchanged.
• OpenAI is introducing four preset text personas—Zyniker, Roboter, Zuhörer and Nerd—to let users pick different conversational styles.
• CEO Sam Altman says the goal is a warmer feel without GPT-4o’s perceived fussiness and signals a push toward stronger per‑user personality controls.
• OpenAI describes the tweaks as subtle and aimed at greater accessibility, citing internal tests that show no increase in submissiveness compared with the prior GPT-5 personality.
• The shift follows user frustration over GPT-5’s brief, impersonal replies and reinstatement of GPT-4o, with reporting also noting research that warmer styles can raise error risks.