whisper-large-v3
by openai
Robust speech recognition trained on 680K hours of multilingual audio
openai/whisper-large-v3mixpeek://transcription@v1/openai_whisper_large_v3Overview
Whisper is a general-purpose speech recognition model trained on a massive dataset of diverse audio. It supports multilingual transcription, translation, and language identification. The large-v3 variant achieves near-human accuracy on many benchmarks.
On Mixpeek, Whisper powers audio transcription for video and audio content, generating timestamped text that enables full-text search across spoken content.
Architecture
Encoder-decoder Transformer with 32 encoder layers and 32 decoder layers. Processes 30-second audio segments as 80-channel log-mel spectrograms. Uses multi-task training format with special tokens for timestamps, language, and task type.
Mixpeek SDK Integration
// No extractor parameter takes a Hugging Face model id (checked against
// GET /v1/discovery/extractors, which returns 13), so whisper-large-v3 runs
// on your side and the output is upserted through POST
// /v1/namespaces/{namespace_id}/documents/upsert. On Enterprise the other
// path is to upload the weights instead: POST /v1/namespaces/{id}/models
// accepts the huggingface format and a custom plugin loads them.
const res = await fetch(
"https://api.mixpeek.com/v1/namespaces/ns_your_namespace/documents/upsert",
{
method: "POST",
headers: {
Authorization: "Bearer API_KEY",
"Content-Type": "application/json",
},
body: JSON.stringify({
collection_id: "col_your_collection",
documents: [
{
document_id: "asset-00412",
// The model produces text, so it lands in payload. Give the
// collection a text vector index and embed that text to make it
// searchable rather than only filterable.
payload: { extracted_text: modelOutput, source_key: "archive/2026/asset-00412" },
vectors: { "text-embedding": embeddingOfModelOutput },
},
],
}),
},
);
// Managed alternative, if this exact model is not the requirement:
// universal_extractor@v1 runs google/gemini-embedding-2
// (3072-d) over a bucket, with no inference of your own.Capabilities
- 99+ language transcription and translation
- Word-level timestamps
- Robust to background noise, accents, and domain-specific vocabulary
- Automatic language detection
Use Cases on Mixpeek
Benchmarks
| Dataset | Metric | Score | Source |
|---|---|---|---|
| Fleurs (62 langs) | Avg WER | 10.4% | Radford et al., 2023: Table 1 |
| LibriSpeech (test-clean) | WER | 2.0% | Radford et al., 2023: Table 2 |
| Common Voice 15 | Avg WER | 11.7% | Whisper model card |
Performance
1.55B params, supports 99 languages
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Specification
Research Paper
Robust Speech Recognition via Large-Scale Weak Supervision
arxiv.orgBuild a pipeline with whisper-large-v3
Add this model to a processing pipeline alongside other extractors. Combine with retrieval stages for end-to-end search.
Run it on your own data, free