Transcript of a 10-minute client video before localizing it: cost

Sume video inspect transcribes at $0.01 per audio minute, with a 600-second hint cap, so 10 minutes is $0.10 plus compute. Set language_code, get sentences.

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Ten minutes of audio is $0.10 at the transcript rate on Sume video inspect: $0.01 per audio minute. Inspect also bills its Modal compute for probing, so the call costs more than the transcript line; the docs do not give one all-in number, and they say every inspect reserves its compute ceiling and is captured at what actually ran, never above the hold.

Settings that matter for translation work

  • transcribe: true turns it on. Without it, language_code, segmentation and duration_seconds return 400 video_inspect_transcribe_required.
  • language_code is a hint such as en or ko. Omit it for auto-detect.
  • segmentation.mode sentence also returns gapless sentence segments, which are caption-line shaped, with silence_split_seconds from 0.2 to 3.
  • duration_seconds is a reservation hint with a maximum of 600. Omit it and Sume reserves 1 minute.
  • The source clip can be up to 1800 seconds.

Cost by length

Transcript line only, read 2026-10-03
Audio lengthHint to sendTranscript rate
3 min180$0.03
10 min600$0.10
20 minHint is capped at 600Transcribe in 10-minute clips
Silent clipn/ainspect_source_has_no_audio

Before you pay

Run a probe-only inspect with frames: false first. Check probe.has_audio, because a transcribe request on a clip with no audio track fails as inspect_source_has_no_audio. A translator then works from words with times and sentence segments rather than from a raw audio file.

Request

curl -X POST https://api.sume.com/v1/video-inspect \
  -H "Authorization: Bearer $SUME_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: transcript-1" \
  -d '{"video_url":"https://media.sume.com/artifacts/artf_demo/talk.mp4","frames":false,"transcribe":true,"language_code":"en","duration_seconds":600,"segmentation":{"mode":"sentence"}}'

Sources

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