Marqo vs Milvus
A side-by-side comparison of two self-hosted search engines options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | Marqo | Milvus |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Health score | 87 · Excellent | 100 · Excellent |
| Category | Search Engines | Search Engines |
| License | Apache-2.0 | Apache-2.0 |
| Language | Python | Go |
| Setup difficulty | Medium | Hard |
| Min. RAM | 4,096 MB | 4,096 MB |
| Deployment | docker, kubernetes | docker, kubernetes, helm |
| GitHub stars | ★ 5,030 | ★ 46,245 |
| First released | 2022 | 2019 |
| Replaces | Algolia, Pinecone | Pinecone, Elasticsearch |
What are Marqo and Milvus?
Marqo
Marqo is an open-source, end-to-end search engine that combines vector generation, storage and retrieval. It handles embedding creation automatically so you can run semantic search over text and images.
- Built-in embedding generation
- Text and image semantic search
- No separate ML pipeline needed
- Simple REST API
Milvus
Milvus is an open-source vector database designed for scalable similarity search and AI applications. It can manage billions of vectors and supports semantic search and recommendation use cases.
- Billion-scale vector search
- Multiple index types
- Cloud-native distributed architecture
- Hybrid search support
Marqo vs Milvus: key differences
Marqo is written in Python, while Milvus is built with Go. Milvus is the more established project (first released 2019), while Marqo arrived in 2022. Milvus has the considerably larger community, at 46,245 GitHub stars versus 5,030.
Why pick each one
Choose Marqo if…
- All-in-one vector search
- No external embedding service required
Watch out for
- Heavy GPU or RAM needs for models
Choose Milvus if…
- Scales to massive datasets
- Mature vector ecosystem
Watch out for
- Complex distributed deployment
Frequently asked questions
Is Marqo or Milvus better?
Neither is universally better. Milvus has the larger community, while Marqo is simpler to set up (medium difficulty). Choose based on the comparison table above and your own setup.
Are Marqo and Milvus free and open-source?
Yes. Marqo is licensed under Apache-2.0 and Milvus under Apache-2.0. Both can be self-hosted at no software cost.
Can I run Marqo and Milvus with Docker?
Marqo: yes. Milvus: yes.