GPT-5.2 is an AI model released by OpenAI on Dec 11 2025, 22 days after GPT-5.1-Codex-Max. It is the 26th tracked release from OpenAI out of 33 total.
On published benchmarks, it scores 92.4% on GPQA Diamond (graduate-level science reasoning), 80% on SWE-Bench Verified (real-world software engineering).
About OpenAI: Creators of ChatGPT and the GPT series of models. Pioneered large-scale language model research.