Why GPT‑5.5 Is a True Generational Leap: Deep Dive vs. Claude Opus 4.7
GPT‑5.5, the first fully retrained base model since GPT‑4.5, delivers an 11.7‑point jump on ARC‑AGI‑2, wins 9 of 10 shared benchmarks, shows superior agent and ultra‑long‑context performance, yet incurs higher latency and token pricing, while Claude Opus 4.7 excels on deep‑reasoning tasks, marking a multi‑pole era for frontier AI.
