canary-qwen-2.5b
by nvidia
#1 open-source ASR on the HuggingFace Open ASR Leaderboard
nvidia/canary-qwen-2.5bmixpeek://transcription@v1/nvidia_canary_qwen_25b_v1Overview
Canary-Qwen is NVIDIA's speech-augmented language model that holds the top position on the HuggingFace Open ASR Leaderboard with a mean WER of 5.63%. It combines a FastConformer encoder with Linearly Scalable Attention and a Qwen3-1.7B decoder, trained on 234K hours of speech data.
On Mixpeek, Canary-Qwen delivers the most accurate English transcription available in an open-source model: critical for video search pipelines where transcript quality directly determines retrieval precision.
Architecture
Speech-Augmented Language Model (SALM). FastConformer encoder with Linearly Scalable Attention + Qwen3-1.7B decoder connected via linear projection + LoRA. 80ms frame rate (12.5 tokens/sec). Trained on 234K hours, ~40M speech-text pairs.
Mixpeek SDK Integration
// No extractor parameter takes a Hugging Face model id (checked against
// GET /v1/discovery/extractors, which returns 13), so canary-qwen-2.5b 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
- #1 on HuggingFace Open ASR Leaderboard (5.63% mean WER)
- English ASR with punctuation and capitalization
- Noise-robust (2.41% WER at SNR 10)
- 418x real-time factor on GPU
- Production-grade accuracy on financial earnings calls (10.42% WER)
Use Cases on Mixpeek
Benchmarks
| Dataset | Metric | Score | Source |
|---|---|---|---|
| Open ASR Leaderboard | Mean WER | 5.63% | HuggingFace Open ASR Leaderboard, 2025 |
| LibriSpeech Clean | WER | 1.60% | NVIDIA Model Card, 2025 |
| LibriSpeech Other | WER | 3.10% | NVIDIA Model Card, 2025 |
Performance
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Specification
Research Paper
SALM: Speech-Augmented Language Model
arxiv.orgBuild a pipeline with canary-qwen-2.5b
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