Claude Opus 5.5 debuts at 40% lower cost, with cache reads 60% cheaper
addyosmani · x · 2026-09-23
Addy Osmani introduces Claude Opus 5.5: priced 40% below Opus 5, with cache reads 60% cheaper, and performance at Claude Fable 5.1 level for most tasks. He celebrated by recreating the classic pelican-riding-a-bike demo in Three.js.
Related event: Anthropic Launches Claude Opus 5.5: Smarter, Faster and 40% Cheaper(52 posts)→
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