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Whisper large-v3
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Whisper large-v3 is an open-weights speech-to-text model from OpenAI, released November 2023. Its published size is 1.55B parameters. Licence: apache-2.0.
Score within the Open ASR English short-form WER (March 2026) comparison set only.
$ how it compares
The speech-to-text models ranked either side of Whisper large-v3, out of 176 with a score, then more from OpenAI.
| # | model | score | where | ||
|---|---|---|---|---|---|
| 65 | 57±1 | api $0.0015/audio min +local | |||
| 66 | 57±4 | local | |||
| 67 | 57±1 | api $0.0018/audio min +local | |||
| 68 | 57±4 | local | |||
| 69 | 57±3 | local | |||
| more from OpenAI | |||||
| 13 | 64±4 | api $0.0045/audio min | |||
| 48 | 59±3 | api $0.017/audio min | |||
| 61 | 57±1 | api $0.0005/audio min +local | |||
see all speech-to-text models · find the ones that fit your machine
$ what it's good at
long-form transcription▁▁▄▁·▁▂█▄▁▁▁ #5 of 27 * · 2.2% of its score · 1 test
Beats Chirp 3, Parakeet TDT 0.6B v2, Parakeet TDT 1.1B here, though they rank higher overall.
| test | result | vs the others in its run | counts |
|---|---|---|---|
| Open ASR English long-form WER | 8.7% ✎ | ▁▁▅▁·▃▅█▆▁▂▂ beats 23/30 | 2.2% |
multilingual transcription▂··▃▄█▆▅▄▂·▂ #7 of 36 * · 7.9% of its score · 2 tests
Beats Cohere Transcribe Arabic (07-2026), Nova-3, Qwen3-ASR-1.7B here, though they rank higher overall. Trails SeamlessM4T v2 Large here, though they rank lower overall.
| test | result | vs the others in its run | counts |
|---|---|---|---|
| Open ASR multilingual WER | 4.8% ✎ | ▂··▂▃▂█▃█▂▁▁ beats 20/29 | 7.5% |
| Iberian ASR benchmark · 7-language macro WER (eu, ca, gl, pt, es + de, tr) | 19.3% ✎ | █▃▃··▅▃▃··▃▃ beats 7/10 | 0.4% |
other tests54 not in a task · 90% of its score
| test | result | vs the others in its run | counts |
|---|---|---|---|
| LibriSpeech test-other WER +4 | 3.6% ✎ | ███·····██·█ beats 4/5 | 5.9% |
| LibriSpeech test-clean WER +5 | 1.8% ✎ | ▁···▁▁▂·▄▄██ beats 35/56 | 4.7% |
| AfriSpeech-MultiBench · 7-region African-accent mean WER | 21.2% ✎ | ▂····▂···▂▆█ beats 11/11 | 4.2% |
| SPGISpeech test WER +1 | 3.1% ✎ | ▄▄··▄██··▄██ beats 5/11 | 4.0% |
| GigaSpeech test WER +2 | 11.6% ✎ | ▁····▁··▁▄█▂ beats 12/17 | 3.7% |
| AfriSpeech-MultiBench · Parliament (legal domain) WER | 20.0% ✎ | ▂▂····▂·▅·▃█ beats 8/12 | 3.6% |
| Bangla STT benchmark · BanSpeech 1,001-clip batch CER | 30.7% ✎ | █·▄··▄··▄·▄▄ beats 0/6 | 2.9% |
| FLEURS English test WER +5 | 4.0% ✎ | ▁··▁▁▁▁▁▁▃█▁ beats 51/56 | 2.6% |
46 more tests
$ where to run it
Through an API
api · Groq · $0.0018/audio min · console.groq.com ↗ · price sourceUSD per input audio minute, converted from the rounded LiteLLM per-second rate. 10-second minimum charge per request; published tariff $0.111/hour. Product: Batch/file speech transcription. API model: whisper-large-v3. Settings: streaming=no, minimum billed seconds=10. Price basis: rounded catalogue rate (not a new estimate of speech length). Currency: USD.
Other ways to run it
version
- Run it as published · needs ~4.22 GB · from github.com/openai (official)
uvx --from openai-whisper whisper audio.mp3 --model large-v3
Official weights and documentation: huggingface.co/openai ↗
$ how the score was worked out · Mistral AI — Voxtral technica… 12%, Open ASR Leaderboard 12%, Qwen/Qwen3-ASR-1.7B model card 11% and 28 more
Each result implies a score on its own, after adjusting for how hard its test is and who ran it. The score is their weighted average, with a small pull toward the middle for thinly tested models. Each test's weight is its counts column above; here it's added up by who ran the tests. How it works
$ quantization evidence · 4 measurements
How much of the full-precision result a quantized version kept, measured within one study. Rows from the same study share a table and aren't independent.
| precision | test | full → quantized | kept | |
|---|---|---|---|---|
| FP8 dynamic (llm-compressor FP8_DYNAMIC; table column header says "w8a8") | LibriSpeech test-clean WER (lmms-eval `librispeech`, vLLM whisper backend, batch 64) | 0.0217 → 0.021 | 103.6% | source ↗ |
| FP8 dynamic (llm-compressor FP8_DYNAMIC; table column header says "w8a8") | LibriSpeech test-other WER (lmms-eval `librispeech`, vLLM whisper backend, batch 64) | 0.039 → 0.0396 | 98.5% | source ↗ |
| INT8 W8A8 (SmoothQuant + GPTQ via llm-compressor) | LibriSpeech test-clean WER (lmms-eval `librispeech`, vLLM whisper backend, batch 64) | 0.0217 → 0.0207 | 104.7% | source ↗ |
| INT8 W8A8 (SmoothQuant + GPTQ via llm-compressor) | LibriSpeech test-other WER (lmms-eval `librispeech`, vLLM whisper backend, batch 64) | 0.039 → 0.039 | 100.2% | source ↗ |
$ improve this page
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