A near tie on accuracy (blind A/B by the speaker: 17 vs 13 on the 30 spans that
change meaning) and a 6x difference in speed (40 s vs 4m08s for 63.7 min).
Different error profiles: pianissimo better on terms and numbers, kb-whisper on
everyday words. Aggregate numbers only -- no transcript text or domain terms,
this repo is public. Also records the mid-word wrapping bug the comparison found
and its fix.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>