Claude Opus 5.2 spotted being tested inside Claude Code via model routing
koltregaskes · x · 2026-09-15
Users report Claude Code routing opus 5 requests to a new opus 5.2, which iterates on failures unprompted — like it was trained on a gauntlet-style loop. The sighting suggests an official Opus 5.2 release is imminent.
Related event: Anthropic appears to be quietly testing Opus 5.2 via Claude Code(6 posts)→
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