Evidence · first-party tested

At high speech speed, the word-level split points stayed locked to the spoken cadence, with the report saying the captions did not drift across the timeline or introduce visible frame delays.

Input — the actual file we sent
Fast-paced AI demos chatbot clip
A rapid-speech short-form demo clip used to test high-speed audio-visual synchronization, especially whether word-by-word highlight timing drifts when the speaker talks quickly.
The observation

At high speech speed, the word-level split points stayed locked to the spoken cadence, with the report saying the captions did not drift across the timeline or introduce visible frame delays.

Criterion: Timing precision · Scenario: Fast-paced AI demos chatbot clip (group: ai-video-clippers)
Query this
get_evidence({
  tool: "autocaption-io",
  scenario: "ai-video-clippers"
})
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