# Letta vs RAGFlow — Fit & Features

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

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

## Compare fit, features, and limitations

### 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

### RAGFlow
RAGFlow is a open-source Retrieval-Augmented Generation (RAG) engine that fuses RAG with Agent capabilities to create a superior context layer for LLMs.
Best fit: People and teams evaluating ai memory & retrieval for a specific workflow.
- Knowledge workflows
Before you choose: Test a representative task, inspect outputs, and confirm integrations, permissions, data handling, licensing, and current costs.
Pricing: https://github.com/pricing
- [Read RAGFlow profile](https://trutool.co/tools/ragflow): Read RAGFlow profile