colqwen-omni-v0.1
by vidore
Omnimodal ColBERT retrieval for documents, audio, and video search
vidore/colqwen-omni-v0.1mixpeek://image_extractor@v1/vidore_colqwen_omni_v1Overview
ColQwen Omni extends the ColPali paradigm to all modalities (documents, audio, and video) using ColBERT-style multi-vector representations built on Qwen2.5-Omni-3B. Unlike dense single-vector models, multi-vector retrieval preserves fine-grained token-level matching, delivering higher precision on complex queries.
On Mixpeek, ColQwen Omni powers late-interaction retrieval across document pages, audio recordings, and video content. Its zero-shot audio retrieval (no audio training data needed) makes it especially useful for indexing podcasts, meetings, and lecture recordings alongside visual content.
Architecture
Qwen2.5-Omni-3B-Instruct fine-tuned for ColBERT-style multi-vector output. Dynamic image resolution (max 1024 patches). Audio/video towers frozen during training: audio retrieval is zero-shot. Trained with colpali-engine 0.3.11 on 127K query-page pairs.
Mixpeek SDK Integration
// No extractor parameter takes a Hugging Face model id (checked against
// GET /v1/discovery/extractors, which returns 13), so colqwen-omni-v0.1 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 vector name has to match a vector index on the collection.
vectors: { "multimodal-embedding": yourVector },
payload: { source_key: "archive/2026/asset-00412" },
},
],
}),
},
);
// Managed alternative, if this exact model is not the requirement:
// multimodal_extractor@v2 runs google/gemini-embedding-2
// (3072-d) over a bucket, with no inference of your own.Capabilities
- ColBERT-style multi-vector retrieval across all modalities
- Zero-shot audio retrieval without audio training data
- Dynamic image resolution up to 1024 patches
- 30-minute podcast embedded in under 10 seconds
- Fine-grained token-level matching for complex queries
Use Cases on Mixpeek
Benchmarks
| Dataset | Metric | Score | Source |
|---|---|---|---|
| ViDoRe V1 (visual doc) | nDCG@5 | ~90% | Vidore Blog, 2025 |
Performance
Common Pipeline Companions
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Specification
Research Paper
ColPali: Efficient Document Retrieval with Vision Language Models
arxiv.orgBuild a pipeline with colqwen-omni-v0.1
Add this model to a processing pipeline alongside other extractors. Combine with retrieval stages for end-to-end search.
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