Back to Arena

Jina AI Embeddings

by Jina AI GmbH

System Card

OrganizationJina AI GmbH
Released2020-06
Architectureexternal-memory-network / long-context multimodal neural search
DetailsJina AI provides embedding APIs with 8K token context windows (jina-embeddings-v3), enabling document-level dense retrieval without chunking. jina-embeddings-v4 (2025) is a 3.8B-parameter unified text+image model trained with contrastive learning. Also offers Jina Reader (web scraping to clean text) and Jina Reranker. Over 400,000 registered users.
Parameters—
Domainrag-retrievallong-context
Open SourcePartial
WebsiteVisit
long-contextmultimodalrerankingreader-apicontrastive-learning

Capability Profile

Benchmark Scores

6 of 14 benchmarks
Data Transparency:6 estimated
Long-Context Retrieval
4/5
RULER
76.189pEstimated
NIAH
no data
LooGLE
78.973pEstimated
LongBench
603pEstimated
∞Bench
83.181pEstimated
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
83.699pEstimated
MultiHop-RAG
no data
HotpotQA
66.133pEstimated
Agent Task Memory
0/1
AgentBench-Mem
no data
Personalization
0/1
PerLTQA
no data
Factuality / Grounding
0/1
RAGAS
no data
Sources:Arena estimate — derived from capability profile, not independently verified