# LanceDB vs Letta — Fit & Features

Canonical: https://trutool.co/compare/lancedb-vs-letta
Author: Snehil (https://trutool.co/authors/snehil)

Compare LanceDB and Letta by use case, features, limitations, and evaluation questions.

## Compare fit, features, and limitations

### LanceDB
Store and search multimodal data and embeddings in a vector database.
Best fit: Developers building grounded assistants with persistent context and retrieval.
- Vector storage
- Multimodal retrieval
- Data querying
Before you choose: Test retrieval quality, deletion behavior, access boundaries, and retention. Compare hosting and embedding costs for your data.
Pricing: https://www.lancedb.com/
- [Read LanceDB profile](https://trutool.co/tools/lancedb): Read LanceDB profile

### Letta
Build agents that retain and manage state and memory across interactions.
Best fit: Developers building grounded assistants with persistent context and retrieval.
- Stateful agents
- Agent memory
- Agent APIs
Before you choose: Test retrieval quality, deletion behavior, access boundaries, and retention. Compare hosting and embedding costs for your data.
Pricing: https://www.letta.com
- [Read Letta profile](https://trutool.co/tools/letta): Read Letta profile