Claude Opus 5.5 is now officially released
koltregaskes · x · 2026-09-23
koltregaskes flags that Anthropic has officially released Claude Opus 5.5, linking to the announcement. It's the first model in the Claude 5.5 family; see the official release for benchmarks and pricing.
Related event: Anthropic Launches Claude Opus 5.5: Smarter, Faster and 40% Cheaper(56 posts)→
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