Letta vs RAGApp

A side-by-side comparison of two self-hosted apps from related categories — licensing, setup difficulty, resource needs, and what each one replaces.

Not the right match-up?
FeatureLettaRAGApp
CategorySelf-Hosted AIAI Chat UIs
LicenseApache-2.0Apache-2.0
LanguagePythonTypeScript
Setup difficultyMediumEasy
Min. RAM2,048 MB1,024 MB
Deploymentdocker, sourcedocker
GitHub stars★ 24,149★ 4,441
First released20232024
ReplacesOpenAI AssistantsOpenAI Assistants

Why pick each one

Choose Letta if…

  • Released under the Apache-2.0 license
  • First-class Docker support for quick deployment
  • Mature project with 24.1k GitHub stars
  • Written in Python
Letta details

Choose RAGApp if…

  • Quick to stand up
  • Supports Ollama
RAGApp details

Frequently asked questions

Is Letta or RAGApp better?

Neither is universally better. Letta has the larger community, while RAGApp is simpler to set up (easy difficulty). Choose based on the comparison table above and your own setup.

Are Letta and RAGApp free and open-source?

Yes. Letta is licensed under Apache-2.0 and RAGApp under Apache-2.0. Both can be self-hosted at no software cost.

Can I run Letta and RAGApp with Docker?

Letta: yes. RAGApp: yes.

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