According to @TheRundownAI, OpenAI has released GPT-5.2 Thinking, marking its first AI model to reach human-expert performance on GDPval, a standardized evaluation spanning 44 professional occupations such as presentations and spreadsheet analysis. The company emphasizes significant advancements in long-context reasoning, coding, scientific workflows, and technical writing. GPT-5.2 Thinking is now accessible via the API and Codex, while GPT-5.1 will remain available for three months, enabling businesses immediate access to enhanced productivity tools and integration pathways (source: @TheRundownAI).