Users Notice Opus 5.5 Drifts Toward Its 'Claude Register' the Longer You Work With It

JeremyNguyenPhD · x · 2026-09-29

A user observed that after working with Opus 5.5 on a project for a while, the model 'becomes more comfortable' and drifts toward a more Claude-ish register. A joke reply suggests it happens 'because Opus knows you won't judge.' A lighthearted but notable data point on long-term model behavior drift.

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