LIVE-Last scan updating-49 sources active-1060 signals today-OTHERBrowserOS: Open-Source Agentic Browser
AI on Radar
Subscribe
Automated best-of radar

Best Free Vector databases options.

Candidates with a source-backed free tier, free endpoint, free trial, pretrained download, open weights, open-source license, or self-hosted path. Automated radar for vector databases, hybrid search engines, embedding stores, and retrieval infrastructure. Rankings use existing source-backed radar data and do not invent prices, benchmark scores, release dates, or capabilities.

Candidates
2
matched automatically
Top fit
92
Weaviate
Sources
4
canonical links retained
Access
Free/open
filtered automatically
Updated
Jun 26, 2026
waiting for more evidence
All3Free/open2Paid API3Open source2

Vector databases decision paths

Methodology
Best Vector databasesbest vector databases, alternatives, comparisons, and source-backed alerts.Free Vector databasesFree tier, trial, open-weight, downloadable, or self-hosted signals when sources support them.Open-source Vector databasesOpen-source, open-weight, downloadable, or self-hosted candidates with retained source URLs.Paid API Vector databasesHosted API and enterprise access paths without invented prices, limits, or benchmark claims.Compare Vector databasesSide-by-side verdicts, source coverage, freshness, access labels, and evidence caveats.Track Vector databasesGet private RSS alerts and API-access interest for this decision space as the radar updates.
Best overall radar pick

Weaviate

Highest automated fit score using source-backed task evidence and radar signals.

Score92serviceWeaviate
Best API or hosted option

Weaviate

Strong candidate when the source metadata indicates API or hosted-service availability.

Score92serviceWeaviate
Best open-source option

Weaviate

Strong candidate when open weights, GitHub, permissive license, or self-hosting signals are visible.

Score92serviceWeaviate
#CandidateTypeAccessSourceFitUpdatedWhy it matchedEvidence
01WeaviateWeaviate databaseservicePaid APIOfficial service pageScore92Jun 26, 2026Matched vector database, vector databases, vector db; 2 source links; official service signal; access model: Paid APIweaviate.io
02QdrantQdrant databaseservicePaid APIOfficial service pageScore86Jun 26, 2026Matched vector database, vector db, embedding store; 2 source links; official service signal; access model: Paid APIqdrant.tech

Related automated lists

All best-of pages
RAG toolsBuild AI apps that retrieve, cite, and reason over private or public knowledge.EmbeddingsChoose embeddings and rerankers for RAG, semantic search, clustering, and recommendation systems.Inference platformsDeploy, route, host, cache, and scale AI models for production applications.

Decision pages

Methodology
Weaviate vs QdrantLive comparison
Free digest

Track Vector databases changes

The model, API, pricing and tooling changes that matter, in one morning email with links to the original sources. Free, unsubscribe in one click.

Prefer topic alerts or a custom RSS feed?
Free. Double opt-in, unsubscribe anytime.