# OpenAI's GPT-6 Astra Tops Physics Benchmark With 83.1% on CritPt v2

AlphaSignal, 2026-10-22. [Read the original](https://alphasignal.ai/news/openai-s-gpt-6-astra-tops-physics-benchmark-with-83-1-on-critpt-v2).

CritPt v2 adds 70 revised research-level physics problems with agentic code execution. GPT-6 Astra tops it with 83.1%.