Comparison

NucliaDB vs Weaviate

On the evidence we track, Weaviate leads this comparison with a composite score of 63/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
NucliaDB56
★Weaviate63
Score
vioscaleAI score
NucliaDB56 / 100medium · 51%
Weaviate63 / 100medium · 73%
Pricing
Free tier
NucliaDB✓
Weaviate✓
Model
NucliaDBcommercial
Weaviatefreemium
Price level
NucliaDBhigh
Weaviatelow
Transparent
NucliaDB✓
Weaviate✗
Integrations
Count
NucliaDB1
Weaviate25
Security
Disclosure policy
NucliaDB–
Weaviate✓
Gdpr
NucliaDB✓
Weaviate✓
Hipaa
NucliaDB–
Weaviate✓
Iso27001
NucliaDB✓
Weaviate–
Scorecard
NucliaDB–
Weaviate6.7
Soc2
NucliaDB✓
Weaviate✓
Trust center
Reliability
Sla pct
NucliaDB–
Weaviate99.95
Status page
NucliaDB–
Weaviate✓
Adoption
Dependent repos
NucliaDB–
Weaviate15
Github stars
NucliaDB–
Weaviate16,862
Activity
Commits last 30d
NucliaDB–
Weaviate100
Release
Cadence days
NucliaDB–
Weaviate1
History
NucliaDB–
Weaviate20 items
License
Spdx
NucliaDB–
WeaviateBSD-3-Clause
Language
Primary
NucliaDB–
WeaviateGo
Market
Availability
NucliaDB–
Content
Faq
NucliaDB5 items
Weaviate7 items

Capabilities

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

Deployment
Deployment
NucliaDBManaged
WeaviateSelf-hosted
Serverless / consumption pricing
NucliaDB✗
Weaviate-
Index
ANN index (HNSW / IVF / DiskANN / ScaNN / flat)
NucliaDB-
WeaviateHNSW
Distance metrics (cosine / dot / Euclidean)
NucliaDB-
Weaviate-
Query
Metadata filtering
NucliaDB-
Weaviate-
Hybrid search (dense + sparse fusion)
NucliaDB✓
Weaviate✓
Built-in BM25 / lexical
NucliaDB-
Weaviate✓
Storage
Quantization
NucliaDB-
WeaviateProduct
On-disk vs in-memory
NucliaDBDisk-backed
Weaviate-
Scale
Multi-tenancy (namespaces / collections / tenants)
NucliaDB✓
Weaviate✓
Horizontal scale
NucliaDBSharded / distributed
WeaviateSharded / distributed
Consistency
Consistency
NucliaDB-
WeaviateTunable
Licensing
Licence class
NucliaDBProprietary
WeaviatePermissive OSS
Classification
Purpose-built vs feature-of-parent
NucliaDBDedicated DBMS
WeaviateDedicated DBMS

What each one is

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

NucliaDB

Progress Agentic RAG is a RAG-as-a-Service platform providing a centralized agentic knowledge layer for building AI experiences with enterprise-scale governance, compliance, and multi-agent capabilities.

Independently observed

Weaviate

Leader

A vector database that enables semantic search by storing both objects and vectors, with built-in support for combining vector similarity search with traditional keyword search, retrieval-augmented generation, and reranking 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.

NucliaDB

from $700/moSubscriptionFree tier14-day trial

From $700/month. 14-day free trial available.

  • Starter$700/month
    • RAG
    • Q&A
    • Community support
  • Pro$1,925/month
    • RAG
    • Q&A
    • AI classification
    • Generative search
    • AI Assistant
    • +2 more
  • EnterpriseContact sales
    • RAG
    • Q&A
    • AI classification
    • Generative search
    • AI Assistant
    • +4 more
as of verify ↗

Weaviate

Leader
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
NucliaDB✓
Weaviate✓
Deployment
Cloud / SaaS
NucliaDB✓
Weaviate✓
Self-hosted
NucliaDB✗
Weaviate✓
Hybrid
NucliaDB✓
Weaviate✗

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

NucliaDB

1 total
  • AWS Marketplace
Independently observed

Weaviate

Leader

Not documented yet.

Still deciding?

NucliaDB 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.