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Speech v3.1

OSpeech v3.1
Compare in
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API price not publicprice
3.9Open ASR
—released
en, es, fr +3Languages

Ranking?

Full ranking →
1Multilingual1.82Speech v3.11.93Cohere Transcribe 03 20262.13ASR K12.15Resonant 12.1

Benchmarks

in Speech & Voice
Open ASR · average WER3.9#1
Open ASR · AMI Cleaned WER6.4#4
Open ASR · Earnings-22 Cleaned AA Chunked WER4.6#2
Open ASR · GigaSpeech Cleaned WER7.1#4
Open ASR · LibriSpeech Clean WER0.9#2
Open ASR · LibriSpeech Other WER1.9#2
Open ASR · SPGISpeech WER1.6#3
Open ASR · URGENT 2024 WER8.1#2
Open ASR · Voice Arena Monsoon WER3#3
Open ASR · VoxPopuli AA Cleaned WER1.4#2
Open ASR · URGENT 2024 Clean WER3.9#1

FAQ

How much does Speech v3.1 cost?›

There is no per-unit API price: API price not public.

Is Speech v3.1 free to use?›

There is no free API.

How good is Speech v3.1, and what is it best at?›

#1 of 61 in Speech to text.

Is Speech v3.1 better than Multilingual?›

On Open ASR · LibriSpeech Other WER, Speech v3.1 scores 1.9 vs 1.8 — about the same.

Is Speech v3.1 open source?›

No, Speech v3.1 is a closed model available through an API. The closest open-weights option here is Cohere Transcribe 03 2026.

What is Speech v3.1?›

Speech v3.1 is a closed speech & voice model from OtterAI.

What are the best alternatives to Speech v3.1?›

Cohere Transcribe 03 2026 (open weights).