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周小舟andClaude Opus 5.5 628b01b77e perf(studio): trim the fast-output chain and record model token usage
- Fast output runs the content pipeline without clustering (one unused model
  call) and without re-encoding every clip and collection (studio renders
  from the source); clip rows still sync from step 4 for the candidate list.
- Packaging no longer asks the model to restate the transcript when no
  translation is needed; its rewrite was discarded for same-language output.
- One face-detection pass per clip serves both the 4:3 interview window and
  the 9:16 podcast crop.
- LLM inputs are compact JSON (indentation cost ~10 tokens per subtitle row).
- Every text and vision call records tokens per project and stage into
  metadata/llm_usage.jsonl (DashScope native usage is captured now), so the
  cost of one video can be measured.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
2026-10-01 11:47:50 +08:00
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