AIPick
Sign in
Tools/Letta

Letta

Framework for building AI agents with persistent, long-term memory.

letta.com
Screenshot of Letta
Web

What is Letta?

Letta (formerly MemGPT) gives AI agents a persistent memory system so they can retain context and learn from past interactions across sessions, instead of resetting each conversation.

Key features

  • Persistent long-term agent memory
  • Open-source framework
  • Managed hosting option

Pricing

Freemium

Free open-source, paid managed platform

Verify on the official pricing page →

Letta use cases

  • 1Building an agent that remembers past conversations
  • 2Giving an AI assistant long-term memory
  • 3Researching agent memory architectures

Who is Letta for?

DevelopersAI researchers

Reviews

Your rating
Ease of use
Features
Value for money
Customer support
Would you recommend it?

Be the first to review Letta.

Alternatives to Letta

Firecrawl

AI-ready web scraping API that turns any website into clean, structured data.

Exa

AI-native search API built for retrieval by LLMs and AI agents.

E2B

Secure cloud sandboxes for running AI-generated code safely.

Pinecone

Managed vector database for building AI search and RAG applications.

⇄ Build a side-by-side comparison →