Rerank model comparison
Four families dominate the reranking space. Here's how they compare on quality, speed, language support, and cost — so you can pick the right one for your stack.
| Model | Type | Best for | Languages | Pricing | BEIR NDCG@10 |
|---|---|---|---|---|---|
| bge-reranker-v2-m3 | Open weights | Self-hosted, free, multilingual | 100+ langs | Free (self-host) | ~60.1 |
| Cohere Rerank v3.5 | Hosted API | Best multilingual quality, mature API | 100+ langs | ~$0.002/1k docs | ~61.2 |
| Jina Reranker v2 | Open + Hosted | Open weights + API + tiny browser model | 100+ langs | Free tier + pay-as-you-go | ~59.6 |
| Voyage Rerank 2 | Hosted API | High retrieval precision, domain-specific | Multilingual | ~$0.0005/1k docs | ~61.0 |
BEIR NDCG@10 figures are approximate and vary by dataset — treat them as a rough guide. Check each vendor's benchmarks for task-specific results.
bge-reranker
Open-weight rerankers from BAAI. A strong English baseline (bge-reranker-base) and excellent multilingual models (bge-reranker-v2-m3). The default choice when you want to self-host for free.
Cohere Rerank
The most mature hosted rerank API, with consistent multilingual quality, a generous free tier and SDK support across Python, Node, Java and Go.
Jina Reranker
Unique in offering both a hosted API and open weights — including a tiny model small enough to run in the browser (which powers our demo).
Voyage Rerank
Voyage AI's rerankers are optimised specifically for retrieval precision and offer domain-tuned variants for code and finance.
How to choose
Use bge-reranker if…
- You want to self-host with no per-call cost
- You need strong multilingual reranking for free
- You're already using sentence-transformers and want a drop-in
Use Cohere Rerank if…
- You want a battle-tested hosted API with official SDK support
- Multilingual quality is the top priority
- You're already in the Cohere ecosystem
Use Jina Reranker if…
- You want the option to self-host OR call an API
- You need a tiny model that can run in the browser or on edge
- You want a free tier with no credit card required
Use Voyage Rerank if…
- You need top-tier retrieval-specific precision
- You're working on code search or financial documents
- You're already using Voyage embeddings
Try a cross-encoder live
See how any of these models would reorder your retrieval results — demo runs in your browser.
Open the demo →