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mixedbread-ai/mxbai-edge-colbert-v0-32m

The crispy, lightweight ColBERT family from Mixedbread.

Architecture
ModernBERT
Parameters
32M
Tasks
Encode
Outputs
Multi-Vec
Dimensions
Multi-Vec: 64
Max Sequence Length
8,192 tokens
License
apache-2.0
Languages
en

Benchmarks

CQADupstackPhysicsRetrieval

scientific retrieval en

Duplicate question retrieval from StackExchange Physics

Corpus: 38,314 Queries: 1,039
Performance L4 b1 c16
Corpus TPS 28.3K
Corpus p50 60.5ms
Query TPS 3.0K
Query p50 55.7ms
Reference →

CosQA

technology retrieval en

Code search with natural language queries

Corpus: 6,267 Queries: 500
Performance L4 b1 c16
Corpus TPS 15.0K
Corpus p50 51.8ms
Query TPS 1.9K
Query p50 48.5ms
Reference →

FiQA2018

finance retrieval en

Financial opinion mining and question answering

Corpus: 57,599 Queries: 648
Performance L4 b1 c16
Corpus TPS 38.9K
Corpus p50 57.5ms
Query TPS 3.7K
Query p50 48.0ms
Reference →

LegalBenchConsumerContractsQA

legal retrieval en

Question answering on consumer contracts

Corpus: 153 Queries: 396
Performance L4 b1 c16
Corpus TPS 87.3K
Corpus p50 76.5ms
Query TPS 5.4K
Query p50 48.3ms
Reference →

NFCorpus

medical retrieval en

Biomedical literature search from NutritionFacts.org

Corpus: 3,593 Queries: 323
Quality
ndcg at 10 0.3376
map at 10 0.1285
mrr at 10 0.5432
Performance L4 b1 c16
Corpus TPS 67.7K
Corpus p50 58.6ms
Query TPS 1.4K
Query p50 53.0ms
Reference →

SCIDOCS

scientific retrieval en

Citation prediction, document classification, and recommendation for scientific papers

Corpus: 25,656 Queries: 1,000
Performance L4 b1 c16
Corpus TPS 36.4K
Corpus p50 70.2ms
Query TPS 2.7K
Query p50 61.8ms
Reference →

SciFact

scientific retrieval en

Scientific claim verification using research literature

Corpus: 5,183 Queries: 300
Performance L4 b1 c16
Corpus TPS 58.8K
Corpus p50 61.2ms
Query TPS 5.4K
Query p50 49.0ms
Reference →

StackOverflowQA

technology retrieval en

Programming question answering from Stack Overflow

Corpus: 19,931 Queries: 1,994
Performance L4 b1 c16
Corpus TPS 52.8K
Corpus p50 58.9ms
Query TPS 68.3K
Query p50 66.6ms
Reference →

Self-hosted inference for search & document processing

Cut API costs by 50x, boost quality with 85+ SOTA models, and keep your data in your own cloud.