---
license: apache-2.0
library_name: transformers
base_model: Qwen/Qwen3-Reranker-8B
pipeline_tag: text-classification
language:
- en
- zh
tags: [zen, zen-reranker, zenlm, hanzo, reranker]
---

# Zen Reranker 8B

8B-parameter cross-encoder reranker for retrieval pipelines and search relevance. Part of the Zen reranker family.

## Hosted via Hanzo gateway

Served at `api.hanzo.ai` as `zen-reranker-8b`.

## Files

Native HuggingFace `safetensors` weights, loadable directly with `transformers`:

```python
from transformers import AutoModel, AutoTokenizer
m = AutoModel.from_pretrained("zenlm/zen-reranker-8B")
t = AutoTokenizer.from_pretrained("zenlm/zen-reranker-8B")
```

For GGUF / Ollama deployment, see [zenlm/zen-reranker-8B-GGUF](https://huggingface.co/zenlm/zen-reranker-8B-GGUF).

## Acknowledgements

Built on [Qwen/Qwen3-Reranker-8B](https://huggingface.co/Qwen/Qwen3-Reranker-8B) (Apache-2.0). Mirrored here as the canonical Zen reranker family entry.