Compare Tools
Pick a category, then select 2–3 tools to compare side by side.
Category
Select 2–3 tools to compare
ElasticsearchhybridFree (self-hosted, Elastic License v2 / SSPL)
MongoDB Vector SearchcloudFree M0 cluster (512MB)
Hybrid Search
Metadata Filtering
Multi Tenancy
Managed Embeddings
Mcp Server
Serverless
Pricing
Free (self-hosted, Elastic License v2 / SSPL)Elastic Cloud Hosted $99+/mo (Standard, Gold, Platinum, Enterprise)Elasticsearch Serverless (pay per use)
Free M0 cluster (512MB)$57+/mo M10 dedicatedSearch Nodes billed separatelyCustom Enterprise
Open Source
Self-Hosted
SDK Languages
pythonjavascripttypescriptgojavarubyphpcsharprust
pythonjavascripttypescriptgojavacsharprubyphprust
Frameworks
langchainllamaindexvercel-aihaystack
langchainllamaindexvercel-aihaystack
Compliance
soc2hipaagdprpci-dssiso27001
soc2hipaagdprpci-dssiso27001
Best For
Hybrid search at scale on top of mature search infrastructure — combine BM25, ELSER sparse vectors, and dense vectors in one query
Teams already on MongoDB who want vector search next to operational data — one driver, one query language, one backup story
Limitations
Heavier and more memory-hungry than purpose-built vector engines; license is no longer pure Apache 2.0; vector-only workloads are overserved by Elasticsearch's full feature surface
Vector indexes are tied to Atlas (not self-hosted Community Server); search nodes add cost; index build times can be long for large collections
Supported Not supported Unverified