GPT-5.5 API, Four Days In: Benchmarks vs Claude Opus 4.7 and Gemini 3.1 Pro

GPT-5.5 API, Four Days In: Benchmarks vs Claude Opus 4.7 and Gemini 3.1 Pro TL;DR: GPT-5.5 dropped on April 24 and leads on math (FrontierMath 52.4%) and ultra-long context retrieval (MRCR 74% vs Claude's 32.2%). Claude Opus 4.7 still owns coding (SW...