Infinity vs RediSearch
A side-by-side comparison of two self-hosted search engines options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | Infinity | RediSearch |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Health score | 89 · Excellent | 90 · Excellent |
| Category | Search Engines | Search Engines |
| License | Apache-2.0 | RSALv2 |
| Language | C++ | Rust |
| Setup difficulty | Medium | Medium |
| Min. RAM | 2,048 MB | 512 MB |
| Deployment | docker, binary | docker, kubernetes, binary |
| GitHub stars | ★ 4,717 | ★ 6,242 |
| First released | 2024 | 2017 |
| Replaces | Pinecone, Elasticsearch | Elasticsearch, Algolia |
What are Infinity and RediSearch?
Infinity
Infinity is an open-source AI-native database built for embedding, full-text and hybrid search with very low latency. It is self-hosted and serves as a high-performance search and retrieval backend.
- AI-native database
- Vector and full-text search
- Hybrid retrieval
- Self-hostable
RediSearch
RediSearch, part of the Redis Query Engine, adds full-text search, secondary indexing and vector search capabilities to Redis. It enables fast querying over data already stored in Redis.
- Full-text search inside Redis
- Secondary indexing of Redis data
- Vector similarity search
- Aggregations and queries
Infinity vs RediSearch: key differences
Infinity is written in C++, while RediSearch is built with Rust. Licensing differs — Apache-2.0 for Infinity versus RSALv2 for RediSearch. RediSearch is the lighter option, starting around 512 MB of RAM against 2,048 MB for Infinity. RediSearch is the more established project (first released 2017), while Infinity arrived in 2024.
Why pick each one
Choose Infinity if…
- Released under the Apache-2.0 license
- First-class Docker support for quick deployment
- Active community (4.7k GitHub stars)
- Written in C++
Choose RediSearch if…
- Very fast, in-memory
- Reuses existing Redis
Watch out for
- Source-available, not OSI licensed
Frequently asked questions
Is Infinity or RediSearch better?
Neither is universally better. RediSearch has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are Infinity and RediSearch free and open-source?
Yes. Infinity is licensed under Apache-2.0 and RediSearch under RSALv2. Both can be self-hosted at no software cost.
Can I run Infinity and RediSearch with Docker?
Infinity: yes. RediSearch: yes.
Which is lighter on resources, Infinity or RediSearch?
RediSearch has the smaller minimum footprint at 512 MB of RAM, compared to about 2,048 MB for Infinity. Real-world usage depends on library size, user count, and enabled features.