microsoft/SPTAG

Vector Databases

A distributed approximate nearest neighborhood search (ANN) library which provides a high quality vector index build, search and distributed online serving toolkits for large scale vector search scenario.

GitHub →

6.6

GitHub Metrics

Stars

5.0k

Forks

619

Open Issues

143

Watchers

131

Contributors

Weekly Commits

Language

C++

License

MIT

Last Commit

Jun 25, 2026

Created

Sep 12, 2018

Latest Release

—

Release Date

—

Synced: Jun 29, 2026

Quality Scores

Documentation Qualityw: 20%

5.9

No dedicated docs site. Description: 204 chars. Stars signal: 5,004. Contributors: 42. Score: 5.9/10

Community Healthw: 20%

7.2

Stars: 5,004. Contributors: 42. Watchers: 131. Forks: 619. Issue ratio: 2.9%. Score: 7.2/10

Maintenance Velocityw: 15%

5.7

Last commit: 4d ago. Weekly commits: 0. No releases published. Maturity bonus: 7.8y old. Score: 5.7/10

API Design & DXw: 20%

6.6

Stars/issues ratio: 35. No dedicated API docs. Permissive license: MIT. Popularity signal: 5,004 stars. Score: 6.6/10

Production Readinessw: 15%

6.9

Battle-tested: 5,004 stars. Peer review: 42 contributors. No versioned releases. Licensed: MIT. Age: 7.8 years. Maintenance: last commit 4d ago. Score: 6.9/10

Ecosystem Integrationw: 10%

7.5

Fork interest: 619. Ecosystem: C++. Integration-friendly: MIT. Adoption: 5,004 stars. Score: 7.5/10