Rumor: Anthropic Soft-Launching Opus 5.1 Through Claude Code Before Full Rollout

CtrlAltDwayne · x · 2026-09-15

A user reports that Anthropic appears to be soft-launching Opus 5.1/5.2 through Claude Code before enabling it elsewhere. He says it 'feels better than Opus 5' (possibly placebo) and expects an official release tomorrow or this week. Unverified user observation, but consistent with Anthropic's release cadence rumors.

Related event: Anthropic appears to be quietly testing Opus 5.2 via Claude Code(6 posts)→

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