GPT‑5.5 Beats Claude on the Zero‑Score Programming Benchmark

GPT‑5.5’s high and ultra‑high inference modes achieve the first perfect pass on the notoriously hard ProgramBench programming benchmark, surpassing Claude Opus 4.7 across all core metrics, while detailed cost and failure analyses reveal why lower‑cost settings still stumble.

AI programming benchmarkClaude Opus 4.7GPT-5.5

0 likes · 10 min read

GPT‑5.5 Beats Claude on the Zero‑Score Programming Benchmark