About GPT-5.4-Pro

GPT-5.4-Pro is an AI model released by OpenAI on Mar 5 2026, 0 days after GPT-5.4. It is the 31th tracked release from OpenAI out of 33 total.

On published benchmarks, it scores 94.4% on GPQA Diamond (graduate-level science reasoning).

About OpenAI: Creators of ChatGPT and the GPT series of models. Pioneered large-scale language model research.