vioscaleAI
Comparison

NebulaGraph vs Virtuoso

No clear leader: NebulaGraph (40.8) and Virtuoso (36.7) 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.

NebulaGraph full profile →Virtuoso full profile →
Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
NebulaGraph41
Virtuoso37
Score
vioscaleAI score
NebulaGraph41 / 100medium · 67%
Virtuoso37 / 100high · 77%
Pricing
Free tier
NebulaGraph✓
Virtuoso✓
Model
NebulaGraphopen_source
Virtuosofreemium
Price level
NebulaGraphfree
Virtuosohigh
Starting price
NebulaGraph–
Virtuoso$99.99
Transparent
NebulaGraph✗
Virtuoso✓
Integrations
Count
NebulaGraph7
Virtuoso6
Security
Gdpr
NebulaGraph✓
Virtuoso–
Scorecard
NebulaGraph5.7
Virtuoso2.7
Trust center
Vulnerabilities
Reliability
Sla pct
NebulaGraph99.999
Virtuoso–
Status page
NebulaGraph–
Virtuoso✓
Adoption
Dependent repos
NebulaGraph5
Virtuoso1
Github stars
NebulaGraph12,433
Virtuoso975
Package downloads weekly
NebulaGraph–
Virtuoso22
Activity
Commits last 30d
NebulaGraph2
Virtuoso9
Release
Cadence days
NebulaGraph74
Virtuoso143
History
NebulaGraph20 items
Virtuoso19 items
License
Spdx
NebulaGraphApache-2.0
VirtuosoBSD
Language
Primary
NebulaGraphC++
VirtuosoC
Market
Availability
Content
Faq
NebulaGraph8 items
Virtuoso7 items

Capabilities

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

Model
Graph model
NebulaGraphProperty graph
VirtuosoRDF / triple
Query language(s)
NebulaGraphnGQL, OpenCypher, ISO-GQL
VirtuosoSPARQL
Transactions
ACID transactions
NebulaGraphFull
Virtuoso-
Consistency model
NebulaGraphStrong
Virtuoso-
Architecture
Storage
NebulaGraphPluggable backend
Virtuoso-
Distributed / scale
NebulaGraphSharded
Virtuoso-
Replication / HA
NebulaGraph✓
Virtuoso✓
OLTP vs OLAP
NebulaGraphBoth
VirtuosoBoth
Deployment
Deployment
NebulaGraphSelf-hosted
VirtuosoSelf-hosted
Search
Full-text search
NebulaGraphBuilt-in
Virtuoso-
Built-in vector search
NebulaGraph✓
Virtuoso-
Licensing
Licence class
NebulaGraphPermissive OSS
VirtuosoSource-available
Portability
openCypher / TinkerPop standard
NebulaGraph✓
Virtuoso✓

What each one is

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

NebulaGraph

An open-source, distributed graph database system designed to query large relationship networks with millisecond latency while supporting complex graph analytics and high availability across multiple nodes.

Independently observed

Virtuoso

A database server supporting both conventional relational data via SQL and semantic graphs via SPARQL and GraphQL. Designed to integrate diverse data sources into a unified system that enables knowledge graph creation, reasoning, and enterprise-wide data discovery.

Independently observed

Pricing

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

NebulaGraph

from $0.35/moHybridFree tier14-day trial

Free open-source edition; enterprise licensing and managed cloud options available

  • Open-source EditionFree
    • Subset of core features
    • Graph query language support (nGQL/openCypher, ISO-GQL)
    • Graph algorithms and analytics
    • Community support
  • Enterprise EditionContact sales
    • Enhanced performance
    • Enterprise-grade stability and security
    • Premium support service
    • Multiple deployment methods
    • Advanced features: REST API, vector search, multi-graph queries, plugin management
    • +3 more
  • NebulaGraph CloudFrom $0.35/hour (beta pricing with 70% discount); 14-day free trial
    • One-click deployment and scaling
    • High availability with multi-data center replication
    • Automatic backup and restoration
    • Integrated visualization tools (Nebula Studio, Explorer, Dashboard)
    • Fine-grained access control
as of verify ↗

Virtuoso

from $99.99/yrHybridFree tier

From $99.99/year for workstation licenses. Free open-source edition available under GPL. Perpetual enterprise licenses available on request.

  • Personal$99.99/year
    • 2 Concurrent Sessions
    • CPU Core Affinity
    • Linux, Windows, macOS
    • Workstation
  • Developer$199/year
    • 5 Concurrent Sessions
    • Application Development License
  • Project$499/year
    • 16 Concurrent Sessions
    • Unlimited CPU Cores
    • Server-Grade Operating Systems
    • Enterprise Support
as of verify ↗

Platform & deployment

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

Platforms
Web
NebulaGraph✓
Virtuoso✓
macOS
NebulaGraph✗
Virtuoso✓
Windows
NebulaGraph✗
Virtuoso✓
Linux
NebulaGraph✓
Virtuoso✓
CLI
NebulaGraph✓
Virtuoso✗
Deployment
Cloud / SaaS
NebulaGraph✓
Virtuoso✗
Self-hosted
NebulaGraph✓
Virtuoso✓
On-premise
NebulaGraph✗
Virtuoso✓

Integrations

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

NebulaGraph

8 total
  • Azure Marketplace
  • AWS (planned)
  • Google Cloud Platform (planned)
  • Nebula Studio
  • Nebula Explorer
  • Nebula Dashboard
  • ElasticSearch
  • HDFS
Independently observed

Virtuoso

6 total
  • SQLAlchemy
  • RDFLib
  • SQL databases
  • NoSQL databases
  • Linked Data sources
  • APIs
Independently observed
Still deciding?

NebulaGraph or Virtuoso: 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.