Qdrant vs Vespa
A side-by-side comparison of two self-hosted search engines options — licensing, setup difficulty, resource needs, and what each one replaces.
Qdrant
High-performance open-source vector search engine
VS
Vespa
Open-source big data serving engine for search and recommendation
| Feature | Qdrant | Vespa |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Health score | 98 · Excellent | 91 · Excellent |
| Category | Search Engines | Search Engines |
| License | Apache-2.0 | Apache-2.0 |
| Language | Rust | Java |
| Setup difficulty | Medium | Hard |
| Min. RAM | 512 MB | 4,096 MB |
| Deployment | docker, kubernetes, helm | docker, kubernetes, bare-metal |
| GitHub stars | ★ 34,775 | ★ 7,109 |
| First released | 2021 | 2017 |
| Replaces | Pinecone, Algolia | Elasticsearch, Algolia |
What are Qdrant and Vespa?
Qdrant
Qdrant is an open-source vector similarity search engine and database written in Rust. It powers semantic search, recommendations and retrieval-augmented generation with a convenient API.
- Fast vector similarity search
- Payload filtering with vectors
- Distributed clustering
- REST and gRPC APIs
Vespa
Vespa is an open-source platform for low-latency computation over large data sets, powering search, recommendation and AI applications. It combines storing, searching, ranking and organizing data.
- Combined search and ML ranking
- Vector and tensor computation
- Real-time indexing at scale
- Used for large recommendation systems
Qdrant vs Vespa: key differences
Qdrant is written in Rust, while Vespa is built with Java. Qdrant is the lighter option, starting around 512 MB of RAM against 4,096 MB for Vespa. Vespa is the more established project (first released 2017), while Qdrant arrived in 2021. Qdrant has the considerably larger community, at 34,775 GitHub stars versus 7,109.
Why pick each one
Choose Qdrant if…
- Excellent performance
- Easy to deploy
Watch out for
- Specialized for vector workloads
Choose Vespa if…
- Extremely powerful and scalable
- Built-in ML ranking
Watch out for
- Steep learning curve
- Heavy resource needs
Frequently asked questions
Is Qdrant or Vespa better?
Qdrant is the stronger all-round pick: it has both the larger community and the simpler medium setup. Consider Vespa if its specific feature set fits your needs better.
Are Qdrant and Vespa free and open-source?
Yes. Qdrant is licensed under Apache-2.0 and Vespa under Apache-2.0. Both can be self-hosted at no software cost.
Can I run Qdrant and Vespa with Docker?
Qdrant: yes. Vespa: yes.
Which is lighter on resources, Qdrant or Vespa?
Qdrant has the smaller minimum footprint at 512 MB of RAM, compared to about 4,096 MB for Vespa. Real-world usage depends on library size, user count, and enabled features.