Comparison

Chroma vs Weaviate

No clear leader: Chroma (64.7) and Weaviate (62.5) are within the 5-point margin; treat as a tie. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.

Machine formatsMarkdownJSONGraphQLAll open, no key required.
Chroma65
Weaviate63
Score
vioscaleAI score
Chroma65 / 100medium · 70%
Weaviate63 / 100high · 75%
Pricing
Free tier
Chroma
Weaviate
Model
Weaviatefreemium
Price level
Chromalow
Weaviatelow
Transparent
Chroma
Weaviate
Integrations
Count
Chroma
Weaviate25
Reliability
Sla pct
Chroma
Weaviate99.95
Status page
Chroma
Weaviate
Adoption
Dependent repos
Chroma6,246
Weaviate15
Github stars
Chroma29,270
Weaviate16,788
Package downloads weekly
Chroma2,592,643
Weaviate
Activity
Commits last 30d
Chroma35
Weaviate100
Release
Cadence days
Chroma4
Weaviate1
History
Chroma20 items
Weaviate20 items
License
Spdx
Language
Primary
ChromaRust
WeaviateGo
Content
Faq
Chroma7 items
Weaviate7 items

Capabilities

Feature-by-feature on the axes that matter for vector databases. “-” means undocumented, not absent.

Deployment
Deployment
ChromaSelf-hosted
WeaviateSelf-hosted
Serverless / consumption pricing
Chroma
Weaviate-
Index
ANN index (HNSW / IVF / DiskANN / ScaNN / flat)
Chroma-
WeaviateHNSW
Distance metrics (cosine / dot / Euclidean)
Chroma-
Weaviate-
Query
Metadata filtering
ChromaPre-filter
Weaviate-
Hybrid search (dense + sparse fusion)
Chroma
Weaviate
Built-in BM25 / lexical
Chroma
Weaviate
Storage
Quantization
Chroma-
WeaviateProduct
On-disk vs in-memory
ChromaTiered
Weaviate-
Scale
Multi-tenancy (namespaces / collections / tenants)
Chroma
Weaviate
Horizontal scale
ChromaSharded / distributed
WeaviateSharded / distributed
Consistency
Consistency
Chroma-
Weaviate-
Licensing
Licence class
ChromaPermissive OSS
WeaviatePermissive OSS
Classification
Purpose-built vs feature-of-parent
ChromaDedicated DBMS
WeaviateDedicated DBMS

What each one is

The product in its own terms, so the numbers below have context.

Chroma

A search system enabling simultaneous vector similarity, full-text, and structured metadata queries across large datasets. Deployable as open-source self-hosted infrastructure or managed cloud service with usage-based pricing, supporting multi-tenant workloads and distributed scaling.

Independently observed

Weaviate

Weaviate is an open-source vector database that supports hybrid search, metadata filtering, and scalable deployments. It enables developers to build AI applications with semantic search capabilities.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Chroma

from $0.01/moHybridFree tier

Freemium model with usage-based metering. Starter plan free with $5 credits; Team plan $250/month plus metered charges with $100 included credits; Enterprise with custom pricing.

  • StarterFree
    • 10 databases
    • 10 team members
    • Community Slack
  • Team$250/month with $100 included credits, plus overage metering
    • 100 databases
    • 30 team members
    • Slack support
    • SOC II compliance
    • Volume-based discounts
  • EnterpriseContact sales
    • Unlimited databases
    • Unlimited team members
    • Dedicated support
    • Single tenant clusters
    • BYOC clusters
    • +1 more
as of verify ↗

Weaviate

HybridFree tier
as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
Chroma
Weaviate
CLI
Chroma
Weaviate
Deployment
Cloud / SaaS
Chroma
Weaviate
Self-hosted
Chroma
Weaviate
Hybrid
Chroma
Weaviate
Still deciding?

Chroma or Weaviate: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.