Vector Databases

An independent, evidence-based ranking of 19 vector databases, scored on public signals with full provenance, never on user reviews or paid placement.

Machine formatsMarkdownJSONGraphQLAll open, no key required.
Top signal weightsDevelopment activity 0.14Developer Q&A activity 0.14Security posture 0.12Capabilities 0.12
Rank by intent
Ranking basisBest valueDevelopment activity 0.12Developer Q&A activity 0.12Price level 0.11Security posture 0.11

Same facts, re-weighted. Only the weighting changes, never the underlying evidence.

Vector Databases ranked by vioscaleAI composite score
#SoftwareScoreConfidence
174UpstashServerless data platform combining in-memory storage, vector search, messaging, and workflow orchestration in one managed service74medium · 71%
270Zilliz CloudA fully managed cloud service for storing, indexing, and searching high-dimensional vector data at scale70medium · 73%
370PineconeManaged vector database infrastructure for machine learning applications70medium · 72%
466Chroma66medium · 69%
564TurbopufferA database combining vector similarity and text search built on cloud storage64medium · 62%
662EpsillaCreate AI agents without needing engineering resources62low · 35%
761Deep LakeServerless multimodal data platform designed for AI and LLM applications, offering unified storage, search, and management of diverse data types including embed61low · 41%
853KDB.AIA vector database designed for generative AI applications that combines vector search with time-series data capabilities53low · 32%
949NucliaDBAgentic RAG Platform for AI Agents and LLMs49medium · 52%
1042MarqoAn AI-powered ecommerce search platform that learns from customer behavior to deliver personalized, accurate product discovery.42low · 24%
1163WeaviateA vector database platform designed for building AI-powered semantic search applications63medium · 72%
1260txtaiAn integrated AI framework for vector search, language model orchestration, and semantic workflow automation60medium · 56%
1359LanceDBOpen-source vector database for fast, multimodal AI applications with hybrid search capabilities59medium · 53%
1458MilvusAn open-source vector database optimized for large-scale similarity search in GenAI applications58medium · 56%
1556QdrantA vector database for storing, searching, and managing high-dimensional vectors with filtering and payload support56medium · 65%
1656Faiss56low · 35%
1754MyScale54low · 33%
1851InfinityA database system purpose-built for AI and machine learning applications, enabling fast retrieval across vector, tensor, and text-based searches51low · 40%
1947Vald47low · 35%
No tools on this page match that name.

Ranked by the vioscaleAI composite: independent signals, not user reviews. See the method.

Vector Databases compared

Head-to-head on the attributes that matter here, with a source and date on every value.

Vector Databases: common questions

How does vioscaleAI rank Vector Databases?

vioscaleAI ranks vector databases on a confidence-weighted blend of independent signals, weighted most on development activity, developer q&a activity, security posture. Scores come from public evidence such as adoption, activity and security posture, never from user reviews or paid placement.

What is the highest-scored tool in Vector Databases?

Upstash currently leads with a vioscaleAI composite score of 74/100. The full ranking, with the evidence behind every score, is on this page.

How many tools does vioscaleAI list in Vector Databases?

vioscaleAI currently lists 19 in Vector Databases, each with a dated, sourced profile.

Can a vendor pay to rank higher in Vector Databases?

No. Vendors can claim and correct their profile, but placement can never be bought. That independence is what makes the ranking trustworthy for buyers and AI.