Model reference · open weights
jina-embeddings-omni-small is an open-weight embedding model from jinaai, listed in the AxForge catalogue. AxForge can bring it up on EU-owned hardware for you on request — with the licence handled where one is required.
About
jina-embeddings-v5-omni-small: Multi-Task Omni Embedding Base (Small) ArXiv | Blog Average score vs. parameter count across image (MIEB-Lite), video (MMEB-V), and audio (MAEB) benchmarks — jina-v5-omni-nano and jina-v5-omni-small define the open-weight frontier (Table 1 in the ArXiv report). Model Overview jina-embeddings-v5-omni-small is a multimodal embedding model that accepts text, images, video, and audio and produces embeddings in a shared vector space aligned with the text-only jinaai/jina-embeddings-v5-text-small — so you can index with text and query with any modality, no reindexing. For a more compact alternative, see jinaai/jina-embeddings-v5-omni-nano. This is the base repository — it holds all task adapters (retrieval, classification, clustering, text-matching). For a single task, pre-merged task-specific variants are also available: - jinaai/jina-embeddings-v5-omni-small-retrieval — query–document semantic search and RAG (raw-transformers users prepend Query: / Document: to text; sentence-transformers users call encodequery() / encodedocument()). - jinaai/jina-embeddings-v5-omni-small-classification — assigning labels via embedding similarity — zero-shot and few-shot classification across modalities. - jinaai/jina-embeddings-v5-omni-small-clustering — grouping semantically similar items — topic discovery, deduplication, exploratory analysis. - jinaai/jina-embeddings-v5-omni-small-text-matching — symmetric pairwise similarity scoring — STS, paraphrase and near-duplicate detection. Via Elastic Inference Service The fastest way to use v5-omni in production. Elastic Inference Service (EIS) provides managed embedding inference with built-in scaling, so you can generate embeddings directly within your Elastic deployment. See the Elastic Inference Service documentation for setup details. Install For minimum versions see the Requirements section below (transformers = 4.57, torch = 2.5; vLLM path validated with vllm == 0.20.1). Quickstart For retrieval, use encodequery() for query-side embeddings and encodedocument() for document-side embeddings. A bare encode(text) call does not know which retrieval side you intended. This applies to every modality, not ju
Summarised from the published model card. Read the full card on the HuggingFace links below.
Specifications
| Maker | jinaai |
|---|---|
| Type | Embedding models |
| Parameters (lead) | 1.6B |
| Variants | 1 |
| Runs with | transformers |
| Released | 2026-04-01 |
| Popularity | 36k downloads / month |
| Likes | 129 |
| Licence | Commercial licence needed |
How it works
Variants
Open weights ship in several sizes and precisions. One page, all the variants — pick the one that fits your GPU. VRAM figures are estimates from model size.
| Variant | Params | Precision | VRAM | Fits 16 GB | Weights |
|---|---|---|---|---|---|
| jina-embeddings-v5-omni-small | 1.6B | BF16 | ~3.7 GB | ✓ | Weights ↗ |
Using it via the API
Once AxForge deploys jina-embeddings-omni-small for you, it answers on the OpenAI-compatible API — the same base URL and keys as every other model. (jina-embeddings-omni-small below is illustrative; you get the exact model name on deployment.)
$ curl -sS https://api.axforge.ai/v1/embeddings \
-H "Authorization: Bearer $AXFORGE_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"jina-embeddings-omni-small","input":"text to embed"}'
Licence
The weights are open but cc-by-nc-4.0 needs a commercial agreement for business use. AxForge can arrange that licence and host the model for you — you pay AxForge, we settle with the model’s maker. Ask us for a quote. Read the licence ↗
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