head to head · open source
Milvus vs pgrust
Milvus has 46,578 GitHub stars, 4,327 forks, 1,405 open issues and last shipped yesterday. pgrust has 5,741 stars, 223 forks, 6 open issues and last shipped 10 days ago. Milvus leads on adoption by 711% (46,578 vs 5,741 stars). Milvus is written in Go under Apache-2.0; pgrust is written in Rust under AGPL-3.0. Milvus has attracted 9% as many forks as stars, pgrust 4%. Milvus was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Milvus | pgrust | |
|---|---|---|
| GitHub stars | ★ 47K | ★ 5.7K |
| License | Apache-2.0 | AGPL-3.0 |
| Written in | Go | Rust |
| Last push | 2026-11-04 | 2026-10-26 |
| Forks | ⑂ 4.3K | ⑂ 223 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Milvus if
- You weight community size — 47K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick pgrust if
- You want the pgrust feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches Rust
- You evaluated both and pgrust fits your workflow better
About Milvus
What is Milvus? 🐦 Milvus is a high performance vector database built for scale. It powers AI applications by efficiently organizing and searching vast amounts of unstructured data, such as text, images, and multi modal information. 🧑💻 Written in Go and C++, Milvus implements hardware acceleration for CPU/GPU to achieve best in class vector search performance. Thanks to its fully distributed and K8s native architecture, Milvus can scale horizontally, handle tens of thousands of search queries on billions of vectors, and keep data fresh with real time streaming updates. Milvus also supports Standalone mode for…
read the full Milvus overview →
About pgrust
pgrust A Rust rewrite of Postgres that's faster than Postgres and ClickHouse. Try pgrust in your browser → Discord Updates Issues New: Video of Michael's talk at PlanetScale on pgrust — and the slides. How AI Changes the Economics of JIT Compilers What's new in v0.3. pgrust is a re implementation of Postgres meant to show what Postgres would look like if it was built in 2026. It is wire compatible and even SQL dialect compatible with Postgres. It passes all 46,066 tests in Postgres' regression suite. For the story of why we're building it, see pgrust: rebuilding Postgres in Rust with AI. Every line is Rust…
read the full pgrust overview →
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Frequently asked questions
Is Milvus or pgrust more popular?
Milvus has 46,578 GitHub stars and pgrust has 5,741. Milvus has the larger community by that measure.
Are Milvus and pgrust free?
Both are open source. Milvus is licensed under Apache-2.0 and pgrust under AGPL-3.0. Neither carries a licence fee.
What is the difference between Milvus and pgrust?
Milvus is written in Go and pgrust in Rust. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Milvus or pgrust?
Choose Milvus if you want the larger community (46,578 stars) or its Apache-2.0 licence terms. Choose pgrust if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.