Comparison

Milvus vs NucliaDB

No clear leader: Milvus (58.7) and NucliaDB (57.1) 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 formatsJSONMarkdownGraphQLor send Accept: application/json
Milvus59
NucliaDB57
Score
Vioscale score
Milvus59 / 100medium · 52%
NucliaDB57 / 100medium · 51%
Pricing
Free tier
Milvus
NucliaDB
Model
Milvusfreemium
NucliaDBcommercial
Price level
Milvuslow
NucliaDBhigh
Transparent
Milvus
NucliaDB
Integrations
Count
Milvus7
NucliaDB1
Security
Gdpr
Milvus
NucliaDB
Iso27001
Milvus
NucliaDB
Scorecard
Milvus4.4
NucliaDB
Soc2
Milvus
NucliaDB
Adoption
Dependent repos
Milvus7
NucliaDB
Github stars
Milvus45,802
NucliaDB
Activity
Commits last 30d
Milvus100
NucliaDB
Release
Cadence days
Milvus6
NucliaDB
History
Milvus20 items
NucliaDB
License
Spdx
NucliaDB
Language
Primary
MilvusGo
NucliaDB

Capabilities

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

Deployment
Deployment
Milvus-
NucliaDBManaged
Serverless / consumption pricing
Milvus
NucliaDB
Index
ANN index (HNSW / IVF / DiskANN / ScaNN / flat)
Milvus-
NucliaDB-
Distance metrics (cosine / dot / Euclidean)
Milvuscosine, Euclidean, dot product
NucliaDB-
Query
Metadata filtering
MilvusPre-filter
NucliaDB-
Hybrid search (dense + sparse fusion)
Milvus
NucliaDB
Built-in BM25 / lexical
Milvus
NucliaDB-
Storage
Quantization
MilvusProduct
NucliaDB-
On-disk vs in-memory
MilvusDisk-backed
NucliaDBDisk-backed
Scale
Multi-tenancy (namespaces / collections / tenants)
Milvus
NucliaDB
Horizontal scale
MilvusSharded / distributed
NucliaDBSharded / distributed
Consistency
Consistency
MilvusEventual
NucliaDB-
Licensing
Licence class
MilvusPermissive OSS
NucliaDBProprietary
Classification
Purpose-built vs feature-of-parent
MilvusDedicated DBMS
NucliaDBDedicated DBMS

What each one is

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

Milvus

A distributed database system for storing and searching high-dimensional vectors at scale. Supports multiple deployment models from local notebooks to cloud-managed services, with capabilities for hybrid search combining dense and sparse embeddings.

Independently observed

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

Pricing

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

Milvus

HybridFree tier

Open-source free; managed cloud service available

as of verify ↗

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 ↗

Platform & deployment

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

Platforms
Web
Milvus
NucliaDB
CLI
Milvus
NucliaDB
Deployment
Cloud / SaaS
Milvus
NucliaDB
Self-hosted
Milvus
NucliaDB
Hybrid
Milvus
NucliaDB

Integrations

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

Milvus

7 total
  • OpenAI
  • Sentence Transformers
  • BGE-M3
  • SPLADE
  • Jina AI
  • BM25
  • PyMilvus
Independently observed

NucliaDB

1 total
  • AWS Marketplace
Independently observed

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