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MyScale

by MyScale Inc.

System Card

OrganizationMyScale Inc.
Released2023-06
Architecturevector-rag / SQL-native vector database on ClickHouse
DetailsMyScaleDB is a fork of ClickHouse augmented with the MSTG (Multi-Scale Tree Graph) vector index, allowing SQL queries to combine relational predicates and ANN vector search in a single statement. This eliminates the dual-database pattern of maintaining a separate vector store alongside a relational DB. It supports hybrid search, full-text search, and maintains 98.5% recall under heavy metadata filtering.
Parameters—
Domainrag-retrieval
Open SourceYes
WebsiteVisit
SQLClickHouserelational-vectorhybridMSTG

Capability Profile

Benchmark Scores

5 of 14 benchmarks
Data Transparency:5 estimated
Long-Context Retrieval
2/5
RULER
69.539pEstimated
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
64.119pEstimated
HotpotQA
6218pEstimated
Agent Task Memory
0/1
AgentBench-Mem
no data
Personalization
0/1
PerLTQA
no data
Factuality / Grounding
1/1
RAGAS
64.721pEstimated
Sources:Arena estimate — derived from capability profile, not independently verified