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Author SHA1 Message Date
mathiasandClaude Sonnet 5.5 ebc6cc3ff8 docs(research): kb-whisper vs pianissimo on one real hour of Swedish speech
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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>
 2026-10-01 19:45:56 +02:00
mathiasandClaude Sonnet 5.5 4d3e2a471a docs(research): chat over a long transcript -- what the offered models really hold 
phi4-mini 400s at ~13k tokens; gemma4-26b is correct to 90,000 chars and
silently loses the HEAD at 120,000 (no error, no truncation flag). The
end-needle test alone passed at 120k -- only a head-needle exposed it.
Records the default-model trap and the iguana contention hazard.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
 2026-10-01 17:08:13 +02:00
mathiasandClaude Sonnet 5.5 feb108def3 docs(research): measure the audio length ceiling before designing chunking (#33) 
No transcription ceiling found up to 90 min: one 174 MB request through the
LiteLLM NodePort transcribed in 440 s. The first real failure is the public
gateway ingress rejecting bodies over ~8-10 MB with 413, not whisper or a
Metal OOM. Also records that srt arrives wrapped in a JSON envelope, that the
two backends differ in timestamp granularity, and that the existing chat path
truncates at 18k chars (~22 min of speech).

Synthetic Swedish TTS fixture only; no real transcript.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
 2026-10-01 16:33:34 +02:00
mathiasandClaude Opus 4.8 92da25d01e docs(research): Vimeo + Whisper transcript feasibility findings
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Vimeo texttracks API is owner-only (worse than YouTube, no public timedtext) → defer.
Whisper viable as a no-caption fallback; berget/whisper-large-v3 already on the gateway
(cloud), local options on iguana/koala carry setup+GPU-contention cost (ADR-007). Both
investigated inline (session sub-agents are network-sandboxed).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
 2026-06-02 23:14:03 +02:00