ByteDanceSeed Speech

Seed ASR 2.0

Seed ASR 2.0 has an audio-file API for batch transcription. The current guide accepts files shorter than five hours and smaller than 512 MB.

Technical guide

The optimized streaming endpoint supports two-pass recognition. It can display an initial result, then revise a completed segment through a second recognition pass. Finalized utterances are marked separately.Seed ASR streaming API

Practical use

Practical guidance. Store provisional and final transcripts separately in the interface. Search indexes and subtitles should normally use the final result, or an early recognition error can remain after it was corrected.

Specifications & access

Seed ASR 2.0 specifications
DetailValue and conditions
AccessAPI
Model identifiersvolc.seedasr.auc
File resourcevolc.seedasr.auc.Seed ASR audio-file API

Related models

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  • Seed ASR 1.0

    ByteDance · Seed Speech

    First-generation Seed speech recognizer with audio-file and legacy bidirectional streaming interfaces.

    Launch date not confirmedAPI