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Pick up to four tools and compare adoption, momentum and maintenance at a glance. The crown marks the leader in each row.
| Metric | Pinecone | pgvector | Qdrant | Chroma |
|---|---|---|---|---|
| Stars | n/a | 23.6k | 35.5k | 29.6k |
| Weekly downloads | 1.1M | n/a | 3.7M | 2M |
| Download growth | +5% | n/a | +30% | +32% |
| Popularity score | 74/100 | 80/100 | 82/100 | 79/100 |
| Forks | n/a | 1.4k | 2.8k | 2.6k |
| Open issues | n/a | 17 | 789 | 978 |
| Last commit | n/a | 6d ago | 1d ago | 1w ago |
| Latest version | 9.2.0 | n/a | 1.20.0Oct 22, 2026 | 1.5.9May 5, 2026 |
| License | n/a | n/a | Apache-2.0 | Apache-2.0 |
| First released | n/a | 2021 | 2020 | 2022 |
| Signals | Popular | Popular | Popular | Popular |
| Listed in | AI & Machine Learning › Vector Databases & SearchDatabases › Vector Databases | AI & Machine Learning › Vector Databases & SearchDatabases › PostgreSQL Extensions & ToolingDatabases › Vector Databases | AI & Machine Learning › Vector Databases & SearchDatabases › Vector Databases | AI & Machine Learning › Vector Databases & SearchDatabases › Vector Databases |
Hover for exact values; switch to log scale for tools of very different sizes. Not shown (no comparable download data): Pinecone, pgvector.