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 formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
Top signal weightsDevelopment activity 0.14Developer Q&A activity 0.14Security posture 0.12Capabilities 0.12
Rank by intent

Balanced is the citeable default. The facts never change, only how the signals are weighted.

Vector Databases ranked by vioscaleAI composite score
#SoftwareScoreConfidence
180Zilliz CloudA fully managed cloud service for storing, indexing, and searching high-dimensional vector data at scale80medium · 74%
275PineconeA managed vector database that maintains query speed regardless of data scale75medium · 74%
373UpstashServerless data platform for Redis, vector search, messaging, and workflows73medium · 72%
468TurbopufferA database combining vector similarity and text search built on cloud storage68medium · 61%
565EpsillaService for deploying AI agents and knowledge-based applications65low · 29%
663ChromaA search platform purpose-built for artificial intelligence63high · 75%
763WeaviateOpen-source vector database combining semantic search with structured data filtering63medium · 73%
861txtaiPython framework for semantic search, vector indexing, and AI language model workflows61medium · 56%
960Deep LakeA data storage and search platform for AI applications handling multiple data types60low · 38%
1059LanceDBOpen-source database for multimodal AI applications with vector search capabilities59medium · 53%
1157MilvusAn open-source, high-performance vector database designed for AI applications and large-scale similarity search57medium · 57%
1257Faiss57low · 35%
1356NucliaDBAgentic RAG Platform for AI Agents and LLMs56medium · 51%
1456QdrantA vector database and search engine for semantic similarity matching and embeddings56medium · 65%
1555MyScale55low · 45%
1649InfinityA specialized database optimized for language model applications with rapid vector and text search capabilities49low · 39%
1747Vald47low · 35%
1847KDB.AIA vector database designed for generative AI applications that combines vector search with time-series data capabilities47low · 24%
1940MarqoAn AI-powered ecommerce search platform that learns from customer behavior to deliver personalized, accurate product discovery.40low · 30%
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?

Zilliz Cloud currently leads with a vioscaleAI composite score of 80/100. 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.