Claude Opus 5.5 is here. There are really impressive benchmarks.
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Claude Opus 5.5 is here. There are really impressive benchmarks. Anthropic made frontier-level agents dramatically cheaper to keep running too! Opus 5.5 vs Opus 5 💰 input: $5 → $4/M 💰 output: $25 → $20/M 🔄 cache reads: $0.50 → $0.20/M 👈 ⚡ output: 30%+ faster 📉 typical task cost: ~40% lower That cache number matters. Anthropic says cache reads make up most costs in agentic + coding workloads. And the model apparently needs fewer turns/tokens to finish the job too. One early test 🧑💻 200,000-line codebase audit Opus 5: 20+ hours Opus 5.5: under 3 hours …while Opus 5 used 2.5× more tokens
Posted by David Hendrickson (11.2k followers) 1 h ago · 7 likes · 744 views · view the original post on X. Kept by the Dev Radar as AI dev tools.
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