head to head · open source
Milvus vs Apache Cloudberry
Milvus has 46,166 GitHub stars, 4,257 forks, 1,405 open issues and last shipped today. Apache Cloudberry has 1,407 stars, 248 forks, 218 open issues and last shipped 2 days ago. Milvus leads on adoption by 3,181% (46,166 vs 1,407 stars). Milvus is written in Go under Apache-2.0; Apache Cloudberry is written in C under Apache-2.0. Milvus has attracted 9% as many forks as stars, Apache Cloudberry 18%. 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 | Apache Cloudberry | |
|---|---|---|
| GitHub stars | ★ 46K | ★ 1.4K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Go | C |
| Last push | 2026-09-20 | 2026-09-18 |
| Forks | ⑂ 4.3K | ⑂ 248 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Milvus if
- You weight community size — 46K 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 Apache Cloudberry if
- You want the Apache Cloudberry feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches C
- You evaluated both and Apache Cloudberry fits your workflow better
About Milvus
Milvus is a high performance, cloud native vector database written in Go and C++, designed to power AI applications by efficiently storing, indexing, and searching large scale unstructured data such as text, images, and multi modal embeddings. It implements hardware accelerated approximate nearest neighbor (ANN) search using algorithms like HNSW, FAISS, and DiskANN, and supports both real time streaming updates and batch ingestion. Milvus lives in the GenAI infrastructure ecosystem, serving as the persistent storage and retrieval layer for embedding based workloads including RAG, recommendation, and image search.…
read the full Milvus overview →
About Apache Cloudberry
Apache Cloudberry (Incubating) is an open source Massively Parallel Processing database written in C and licensed under Apache 2.0. The project was created by the original developers of Greenplum Database, and it evolves from the open source version of the Pivotal Greenplum Database while using a newer PostgreSQL kernel. It lives in the PostgreSQL and Greenplum ecosystem, and it is positioned as a distributed data warehouse for analytics, big data workloads, and AI or ML workloads.
read the full Apache Cloudberry overview →
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Frequently asked questions
Is Milvus or Apache Cloudberry more popular?
Milvus has 46,166 GitHub stars and Apache Cloudberry has 1,407. Milvus has the larger community by that measure.
Are Milvus and Apache Cloudberry free?
Both are open source. Milvus is licensed under Apache-2.0 and Apache Cloudberry under Apache-2.0. Neither carries a licence fee.
What is the difference between Milvus and Apache Cloudberry?
Milvus is written in Go and Apache Cloudberry in C. 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 Apache Cloudberry?
Choose Milvus if you want the larger community (46,166 stars) or its Apache-2.0 licence terms. Choose Apache Cloudberry if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.