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Mixedbread AI

by Mixedbread AI

System Card

OrganizationMixedbread AI
Released2024-01
Architectureexternal-memory-network / embedding and reranking model API
DetailsMixedbread provides mxbai-embed-large (Matryoshka embedding model supporting dimensionality reduction) and mxbai-rerank (GRPO-trained rerankers supporting 100+ languages) via API and open-source HuggingFace weights. The 2D-Matryoshka technique allows simultaneous reduction of layers and dimensions. The Mixedbread Platform alpha integrates embeddings, reranking, document parsing, and vector stores.
Parameters—
Domainrag-retrieval
Open SourcePartial
WebsiteVisit
Matryoshkarerankingopen-weightsmultilingualGRPO

Capability Profile

Benchmark Scores

5 of 14 benchmarks
Data Transparency:5 estimated
Long-Context Retrieval
2/5
RULER
71.956pEstimated
NIAH
no data
LooGLE
no data
LongBench
603pEstimated
∞Bench
no data
Multi-Turn Recall
0/2
LoCoMo
no data
MemoryBank
no data
Cross-Session Memory
0/1
LongMemEval
no data
Multi-Hop QA
2/3
BABILong
no data
MultiHop-RAG
72.556pEstimated
HotpotQA
68.440pEstimated
Agent Task Memory
0/1
AgentBench-Mem
no data
Personalization
0/1
PerLTQA
no data
Factuality / Grounding
1/1
RAGAS
67.537pEstimated
Sources:Arena estimate — derived from capability profile, not independently verified