On December 11, 2025 (local time), OpenAI made an official announcement, introducing the GPT-5.2 series models. These cutting-edge models represent a significant leap forward, outperforming their predecessors across a range of capabilities. This includes enhanced reasoning skills, more proficient handling of professional knowledge tasks, refined financial modeling, and improved output for PPTs and Excel spreadsheets. Moreover, in multiple reasoning benchmark tests, they have managed to surpass Google Gemini 3.

The GPT-5.2 series is available in three distinct versions: Instant, Thinking, and Pro. Each version is tailored to meet specific user needs. The Instant version is optimized for handling regular queries with speed and efficiency. The Thinking version is designed to tackle complex structured work, providing in-depth analysis and solutions. And the Pro version is engineered to address the most challenging problems, offering advanced capabilities and precision.

Fidji Simo, the CEO of OpenAI's Applications Division, shared that the development of this model has been in the works for several months. The overarching goal has been to unlock greater economic value for individuals and businesses alike. Starting from December 11, GPT-5.2 will be gradually rolled out to all paid ChatGPT users as well as API users, marking a new era in AI-powered solutions.