Last updated 06-27-2026
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Weaviate
Weaviate is an open-source vector database for building search, retrieval-augmented generation (RAG), and agent workflows in one platform. Teams use it to store embeddings, run semantic and hybrid queries, and ship production AI apps without stitching together separate search, memory, and database layers.
The database bundles vector search, built-in embedding services, and agent tooling like Query Agent and Engram under one roof. You can self-host the open-source project or run it as Weaviate Cloud with managed clusters, auto-scaling, and console tools for collections and GraphQL queries.
It fits backend engineers, ML platform teams, and product groups shipping RAG chatbots, recommendation systems, or multi-tenant SaaS features. SDKs cover Python, Go, TypeScript, and JavaScript, with GraphQL and REST APIs for everything else.
Pure vector, semantic, and hybrid search in one collection API
Query Agent turns natural-language questions into database operations
Engram adds managed memory and context for long-running agents
Hosted embeddings inside Weaviate Cloud, billed per million tokens
Multi-tenancy isolates customer data in a single cluster
SDKs for Python, Go, TypeScript, and JavaScript plus GraphQL and REST
Open-source core with a managed cloud option and self-hosted enterprise support.
Combines vector search, embeddings, and agent workflows without separate vendors.
Multi-tenancy and billion-scale architecture support large production workloads.
SOC 2 Type II audited with HIPAA available on Enterprise Cloud (AWS).
Free tier caps storage at 100,000 objects and one collection.
SSO/SAML and HIPAA require Premium or dedicated enterprise plans.
Usage-based vector dimension and storage pricing can be complex to forecast.
Does Weaviate have a free plan?
Yes. Weaviate Cloud offers a Free plan with up to 100,000 objects, one collection, hybrid search, vector compression, multi-tenancy, and RBAC. Embeddings on the free tier are limited to 2,000 requests per day.
How much does Weaviate Cloud cost?
Weaviate Cloud Flex starts at per month with pay-as-you-go billing on shared infrastructure. Premium prepaid contracts start from per month and include shared or dedicated deployment with up to 99.95% uptime on AWS, GCP, and Azure.
Can I self-host Weaviate?
Yes. Weaviate is open source and can run on your own infrastructure. Weaviate also sells Weaviate Assurance for self-hosted deployments, adding enterprise SLAs, 24/7 incident response, and direct access to core engineering.
What programming languages does Weaviate support?
Weaviate provides official client SDKs for Python, Go, TypeScript, and JavaScript. You can also query clusters through GraphQL or REST APIs documented at docs.weaviate.io.
Is Weaviate SOC 2 or HIPAA compliant?
Weaviate Cloud is SOC 2 Type II audited. Enterprise Cloud on AWS supports HIPAA compliance for regulated healthcare workloads. Compliance documentation is available through Weaviate Trust Portal.
What is Weaviate Query Agent?
Weaviate Query Agent lets you query a Weaviate database in natural language and returns precise results. The free tier includes 1,000 requests per month; a monthly organization plan includes 4,000 requests with additional usage billed separately.