Claude Opus 5.5 reportedly spotted in imminent Claude Code v2.1.280 release
Summary
Claude Opus 5.5 AI model has reportedly been spotted in an upcoming release of Claude Code version 2.1.280, suggesting an imminent update.
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@BenjaminDEKR: Claude Opus 5.5 appears to be launching within the hour.
This tweet announces the imminent launch of Claude Opus 5.5, an AI model by Anthropic.
Claude Opus 5.5 spotted on Anthropic’s website, Tuesday release looking more likely
Claude Opus 5.5 has been spotted on Anthropic's website, suggesting an imminent release, possibly on Tuesday.
Introducing Claude Opus 5
Anthropic announces Claude Opus 5, a powerful and cost-effective AI model that approaches the intelligence of Claude Fable 5 at half the price, achieving state-of-the-art results on coding and knowledge work benchmarks.
@Lentils80: Breaking: Claude Sonnet 5 appears in the latest Claude Code CLI build!
Claude Sonnet 5 has appeared in the latest Claude Code CLI build, suggesting a new model release or update from Anthropic.
@chetaslua: Claude Opus 5.2 currently being tested inside claude code > opus 5 is routing to new opus 5.2 > this one shot < but opu…
A user reports testing Claude Opus 5.2 inside Claude Code, noting that Opus 5 routes to the new version and exhibits looping behavior similar to a specific training method without explicit prompting.