Directory
Elastic Cloud
Managed Elasticsearch + vector
PaidSearch, vector & RAGelastic.co
What it is
The managed version of Elasticsearch, covering BM25 keyword search, dense and sparse vector search and its own ELSER learned-sparse model in one engine. Serverless bills by GB retained plus VCU-hours; Cloud Hosted bills provisioned resources across four support tiers. Elasticsearch itself is self-hostable.
Why it earns a slot
Reach for it when search is the product and you need aggregations, relevance tuning, log analytics and vectors in the same cluster rather than three services.
Know before you commit
Overkill and overpriced for a docs site or blog — the $99/mo floor buys machinery most apps never touch, and self-hosting a cluster is a real ops job.
Getting started
docker run -p 9200:9200 docker.elastic.co/elasticsearch/elasticsearch:9.0.0
Neighbourhood
How Elastic Cloud sits against the rest of the atlas — swaps, companions and the tools builders actually save alongside it.
Also in Search, vector & RAG
Algolia
algolia.comNot yet swept
Hosted keyword search API
Free tier + paidSearch, vector & RAG
Free: 10K search requests/mo + 50K records. Grow: $0.50 per 1K searches + $0.40 per 1K records (10K searches / 100K records included). Grow Plus $1.75 per 1K searches. Elevate with NeuralSearch is custom.
Open dossier
Brave Search API
brave.comNot yet swept
Independent web index search API
PaidSearch, vector & RAG
$5/month in free credits applied automatically; no standing free query allowance. Search $5 per 1K requests at 50 QPS. Answers $4 per 1K requests plus $5 per million input/output tokens at 2 QPS. Enterprise custom.
Open dossier
Chroma
trychroma.comNot yet swept
Embedded vector DB + cloud
Free tier + paidSearch, vector & RAG
OSS free (Apache 2.0). Chroma Cloud Starter: $0/mo base with $5 free credits, then usage. Team $250/mo + usage with $100 credits. Rates: $2.50 per GiB written, $0.33 per GiB-month stored, $0.0075 per TiB queried, $0.09 per GiB returned.
Open dossier
Cloudflare Vectorize
developers.cloudflare.comNot yet swept
Serverless vector DB on Workers
Free tier + paidSearch, vector & RAG
Workers Free: 5M stored vector dimensions, 30M queried dimensions/mo. Workers Paid ($5/mo): 10M stored and 50M queried included, then $0.05 per 100M stored dimensions and $0.01 per million queried dimensions.
Open dossier