OpenAI Acknowledges GPT-5.2 Writing Quality Regression

OpenAI CEO Sam Altman said on Monday evening at a developer town hall that the company 'screwed up' GPT-5.2's writing quality, acknowledging regressions versus GPT-4.5. He said development prioritized technical capabilities—intelligence, reasoning, coding and tool use—for 5.2, and advised users who depend on ChatGPT for client-facing or polished writing to re-test prompts and keep fallbacks while OpenAI iterates.