Cosmos DB vs Kuzu

Cosmos DB is a multiple database; Kuzu is a property graph database. Cosmos DB (2014-08, Proprietary, C++) ranks #29 this month; Kuzu (2022-11, MIT, C++) ranks #26.

Attribute Cosmos DB #29 ▼1 Strong Kuzu #26 ▲3 Strong
At a glance
Rank #29#26
Score 54.155.3
GitHub stars —4k
Popularity 53.861.6
Activity 49.947.8
Community 39.158.6
Research 87.752.0
Fundamentals
Description A globally distributed multi-model database service on Microsoft Azure with property graph support through the Apache Gremlin API. Offers multi-region replication and multiple consistency models.An embedded property graph database built for fast analytical workloads, developed as the successor to Graphflow. Archived in October 2025 after acquisition by Apple. Forked as LadybugDB and Bighorn.
Vendor MicrosoftKuzu Inc (acquired by Apple)
Model MultipleProperty Graph
Kind databaseembedded
Category EnterpriseEmerging
First released 2014-082022-11
Status activedeprecated — Acquired by Apple in October 2025. Repository archived. Continued as LadybugDB and Bighorn forks.
License ProprietaryMIT
Written in C++C++
Query languages Gremlin, SQLopenCypher
gdotv support yesyes

Feature scores — not surveyed for Kuzu

Feature Cosmos DBKuzu
Community & Business
Active development ✓—
Commercial support ✓—
Live community 0.5—
Open Source ·—
Pricing ✓—
Trendiness ✓—
Deployment
Containerization 0.5—
Work as dedicated instance ✓—
Work as embedded ·—
Testing in-memory version ✓—
Platform
Operating on Linux ·—
Operating on Windows ✓—
SaaS offering ✓—
Operations
Automatic updates ✓—
Client side caching ·—
Data versioning support ·—
Live backups ✓—
Distribution
Cluster Re-balancing 0.5—
Data Distribution ✓—
High-Availability ✓—
Query Distribution ✓—
Replication support ✓—
Developer Experience
Data types defined ·—
Logging/Auditing ✓—
Object-Graph Mapper ✓—
Reactive programming ✓—
Documentation up-to-date ✓—
Binary protocol ·—
CLI ✓—
GUI ✓—
Data Model
Multi-database ✓—
Graph-native data ·—
REST API ✓—
Query Language ✓—
Transactions
Granular locking ·—
Multiple isolation levels ✓—
Read committed transaction ✓—
Transaction support 0.5—
Schema & Security
Constraints ·—
Schema support ·—
Secondary indexes ✓—
Server side procedures ✓—
Triggers ✓—
Authentication ✓—
Authorization ✓—
Data encryption ✓—