Qwen3-rerank-8B-onnx

Qwen3-Reranker-8B (ONNX Version)

• translated to open neural network exchange for rust inference
• 💡 Just pull the image from docker image hub 💡

<p align="center"> <img src="https://qianwen-res.oss-accelerate-overseas.aliyuncs.com/logo_qwen3.png" width="400"/> <p>

Highlights

The Qwen3 Embedding model series is the latest proprietary model of the Qwen family, specifically designed for text embedding and ranking tasks. Building upon the dense foundational models of the Qwen3 series, it provides a comprehensive range of text embeddings and reranking models in various sizes (0.6B, 4B, and 8B). This series inherits the exceptional multilingual capabilities, long-text understanding, and reasoning skills of its foundational model. The Qwen3 Embedding series represents significant advancements in multiple text embedding and ranking tasks, including text retrieval, code retrieval, text classification, text clustering, and bitext mining.

Exceptional Versatility: The embedding model has achieved state-of-the-art performance across a wide range of downstream application evaluations. The 8B size embedding model ranks No.1 in the MTEB multilingual leaderboard (as of June 5, 2025, score 70.58), while the reranking model excels in various text retrieval scenarios.

Comprehensive Flexibility: The Qwen3 Embedding series offers a full spectrum of sizes (from 0.6B to 8B) for both embedding and reranking models, catering to diverse use cases that prioritize efficiency and effectiveness. Developers can seamlessly combine these two modules. Additionally, the embedding model allows for flexible vector definitions across all dimensions, and both embedding and reranking models support user-defined instructions to enhance performance for specific tasks, languages, or scenarios.

Multilingual Capability: The Qwen3 Embedding series offer support for over 100 languages, thanks to the multilingual capabilites of Qwen3 models. This includes various programming languages, and provides robust multilingual, cross-lingual, and code retrieval capabilities.

Model Overview

Qwen3-Reranker-8B has the following features:

• Model Type: Text Reranking
• Supported Languages: 100+ Languages
• Number of Paramaters: 8B
• Context Length: 32k

For more details, including benchmark evaluation, hardware requirements, and inference performance, please refer to our blog, GitHub.

documents = [ "The capital of China is Beijing.", "Gravity is a force that attracts two bodies towards each other. It gives weight to physical objects and is responsible for the movement of planets around the sun.", ]

pairs = [format_instruction(task, query, doc) for query, doc in zip(queries, documents)]

Tokenize the input texts

inputs = process_inputs(pairs) scores = compute_logits(inputs)

print("scores: ", scores)

📌 **Tip**: We recommend that developers customize the `instruct` according to their specific scenarios, tasks, and languages. Our tests have shown that in most retrieval scenarios, not using an `instruct` on the query side can lead to a drop in retrieval performance by approximately 1% to 5%.

## Evaluation

| Model                              | Param  | MTEB-R  | CMTEB-R | MMTEB-R | MLDR   | MTEB-Code | FollowIR |
|------------------------------------|--------|---------|---------|---------|--------|-----------|----------|
| **Qwen3-Embedding-0.6B**               | 0.6B   | 61.82   | 71.02   | 64.64   | 50.26  | 75.41     | 5.09     |
| Jina-multilingual-reranker-v2-base | 0.3B   | 58.22   | 63.37   | 63.73   | 39.66  | 58.98     | -0.68    |
| gte-multilingual-reranker-base                      | 0.3B   | 59.51   | 74.08   | 59.44   | 66.33  | 54.18     | -1.64    |
| BGE-reranker-v2-m3                 | 0.6B   | 57.03   | 72.16   | 58.36   | 59.51  | 41.38     | -0.01    |
| **Qwen3-Reranker-0.6B**                | 0.6B   | 65.80   | 71.31   | 66.36   | 67.28  | 73.42     | 5.41     |
| **Qwen3-Reranker-4B**                  | 4B   | **69.76** | 75.94   | 72.74   | 69.97  | 81.20     | **14.84** |
| **Qwen3-Reranker-8B**                  | 8B     | 69.02   | **77.45** | **72.94** | **70.19** | **81.22** | 8.05     |

> **Note**:  
> - Evaluation results for reranking models. We use the retrieval subsets of MTEB(eng, v2), MTEB(cmn, v1), MMTEB and MTEB (Code), which are MTEB-R, CMTEB-R, MMTEB-R and MTEB-Code.
> - All scores are our runs based on the top-100 candidates retrieved by dense embedding model [Qwen3-Embedding-0.6B](https://huggingface.co/Qwen/Qwen3-Embedding-0.6B).

## Citation
If you find our work helpful, feel free to give us a cite.

@article{qwen3embedding, title={Qwen3 Embedding: Advancing Text Embedding and Reranking Through Foundation Models}, author={Zhang, Yanzhao and Li, Mingxin and Long, Dingkun and Zhang, Xin and Lin, Huan and Yang, Baosong and Xie, Pengjun and Yang, An and Liu, Dayiheng and Lin, Junyang and Huang, Fei and Zhou, Jingren}, journal={arXiv preprint arXiv:2506.05176}, year={2025} }