Opus 5.5 shows a recurring 'stamp' phrase pattern, dubbed the new 'delve'

dylfreed · x · 2026-10-01

After spotting it in several videos, dylfreed documents a recurring 'stamp motif' in Opus 5.5 outputs, calling it the model's version of 'delve' — a telltale phrasing habit that could become a marker for detecting AI-generated text.

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