mxbai-rerank-large-v2
1.5B Apache 2.0 reranker with 8K context and 100+ languages.
About
Mixedbread's second-generation reranker: a 1.5B cross-encoder (RL-optimized Qwen-2.5 base) handling 8K-token contexts across 100+ languages, with support for code, SQL, JSON, and function-call ranking for multi-tool agents. Mixedbread reports 57.49 NDCG@10 on BEIR, ahead of Cohere Rerank 3.5 and Voyage Rerank 2 on the same table.
Apache 2.0, pip-installable, and a drop-in upgrade for existing RAG pipelines.
Specs
Context window
Pricing
Free quota
API access
Weights
Released
Benchmarks
- beir-ndcg-10: 57.49 (Mixedbread-reported)
Provider-reported unless a source says otherwise. Benchmarks are marketing-adjacent by nature — treat them as directional.
Use cases
Trust score — 8/10
Scored 8/10 (verified tier, metrics-v1). Evidence: Mixedbread official blog with benchmark table; independent model card on superlinked confirms specs; 1.5B RL-optimized cross-encoder, 8K context, 100+ languages, code/SQL/JSON/function-call support; BEIR 57.49 NDCG@10 is Mixedbread-reported; pip package available. License: Apache 2.0 — full commercial use permitted..
How the trust score is built
Full methodology →- Adoption · stars/downloads, log-scaled vs peers
- 7.0/10
- Maintenance · recency, releases, issue load
- 8.0/10
- Openness · license + docs
- 9.0/10
- Manual review · sanity read + red-flag check
- 8.0/10
- · Mixedbread official blog with benchmark table; independent model card on superlinked confirms specs
- · 1.5B RL-optimized cross-encoder, 8K context, 100+ languages, code/SQL/JSON/function-call support
- · BEIR 57.49 NDCG@10 is Mixedbread-reported; pip package available