Alternatives to Actian VectorAI DB

Fully managed vector database for fast, accurate AI retrieval at scale

Open-source vector database for billion-scale AI similarity search.

Open-source vector similarity search for Postgres — add embeddings to your existing database.

AI-native distributed SQL database with vector search, ACID, and HTAP for agentic workloads.

Open-source real-time SQL analytics, full-text search, and vector database for AI.

Free open-source admin UI for ChromaDB vector database

Serverless vector database with auto-scaling and pay-as-you-go pricing.

Open-source, in-process vector database by Alibaba with sub-millisecond search at billion scale

Distributed transactional document database with vector search for AI agents.

Ontology-first Graph RAG platform that turns messy knowledge into reusable packs

Open-source knowledge-graph RAG that maps entities and communities to answer complex, cross-document questions.

Open-source AI search engine uniting vector, text, and ML ranking at scale.

Vespa is an open-source AI search platform that unifies vector, text, and machine-learned ranking at scale.

Fully managed vector lakebase for high-scale AI search, RAG, and recommendations.

Open-source serverless vector search that's up to 10x cheaper

In-memory graph database for real-time GraphRAG, AI memory, and connected analytics.

API-first document parsing that turns 20+ formats into structured JSON for AI agents and RAG pipelines.

Self-hosted RAG search engine with BM25+hybrid retrieval, 34 formats, multi-LLM and security-first governance.

GPU-native serverless PostgreSQL with vector search for AI agents and multimodal data.

Replace five databases with one universal engine for AI products.

Open-source CLI that turns 18 source types into AI skills and RAG knowledge for 22 AI platforms.

High-performance Knowledge Graph engine for AI, LLMs, and GraphRAG

Decentralized Knowledge Graph node software for verifiable, AI-ready data anchoring

Graph + vector persistent memory for AI agents — push JSON, get a typed, searchable graph.

MongoDB Atlas: build and scale AI apps with native vector search in a multi-cloud developer data platform.

Open-source protocol suite that standardizes LLM, vector, graph, and embedding infrastructure for developer teams.

Open-source PDF-to-vector pipeline for RAG in one command.

Multimodal video search API: find any scene by description in your object storage.

Open-source RAG engine with high-precision retrieval, ETL pipeline, and visual agent orchestration for enterprise AI.

Open-source multimodal lakehouse for AI curation, feature engineering, and search.