GPT-6 Astra solves 49 of 50 unpublished theoretical-physics problems on a new benchmark
Physicist-built problems the authors call 'turn-the-crank' research tasks; Claude Opus 5.5 solved 46, Gemini 3.8 Flash 34 and the open-weight DeepSeek-V4.1-Flash 27.
OpenAI, AnthropicBenchmarks & progress · Ideas & essays