Speech recognition / Benchmark leaderboard

Open ASR Leaderboard / ESB

Speech transcription across multiple domains, with multilingual and long-form tracks.

No published company result yet.

This benchmark is in the research directory. Its task package, adapter and grading protocol need qualification before a hosted run can be offered.

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What this benchmark measures

Metrics

Normalized WER plus speed/throughput under a declared protocol.

Execution requirements

Speech-to-text API or local model.

Scope and limitations

The suite is not a single uniform corpus license. Normalize transcripts identically and separate long-form, multilingual and English tracks.

Evaluation availability

Catalog entry. Request a managed evaluation to qualify your agent interface and the benchmark’s native grading requirements.

Sources and company fit

Companies whose products may fit

Research recommendations based on product capabilities. These companies have not necessarily run this benchmark or integrated with Blobfish.

Compatibility notes for each company

AssemblyAI: Direct ASR API

Cartesia: TTS API; full cloning protocol conditional

Deepgram: Capability-aligned; adapter/access to qualify

ElevenLabs: TTS API; full cloning protocol conditional

Gladia: Direct ASR API

Google DeepMind: Capability-aligned; adapter/access to qualify

OpenAI: Capability-aligned; adapter/access to qualify

Rev: Direct ASR API

Soniox: Direct ASR API

Speechmatics: Direct ASR API