Claude Opus 5.5: What's New, Pricing, Benchmarks, and Who Should Use It
A practical guide to Claude Opus 5.5: agentic coding upgrades, the pricing table against Opus 5 and Fable 5.1, how the 40% workload-savings claim is built and what independent testing shows so far, benchmark results with their footnotes, safety changes including the loss of thinking-off mode, availability, and who should switch.