Letta

Letta (formerly MemGPT) is a powerful framework for creating LLM services with built-in memory and stateful agents. It enables developers to build AI agents with infinite context and human-like memory, facilitating continuous learning and improvement over time.

Letta is the open source alternative to:

ChatGPT

Claude

Perplexity

Langchain

About Letta

Letta empowers users to design and deploy AI agents that maintain persistent memory and reasoning across sessions. The platform integrates an Agent Development Environment (ADE) offering a visual interface to iterate on prompts, tools, and model configurations in real time. With robust APIs, SDKs, and production-ready deployment options, Letta supports over 7,000 tools and ensures agents operate within optimized context windows to enhance performance.

Key Features

Stateful agents with built-in, persistent memory
Agent Development Environment (ADE) for real-time visualization and editing
Infinite context support to avoid context window overflow
Robust API and SDK integrations (Python, Node.js/TypeScript)
Scalable deployment options with Docker and Kubernetes

Representation of core functionalities

Rendering mind map...

mindmap Letta Framework Server Components REST API Server Port 8283 WebSocket Server Database Layer PostgreSQL SQLite Authentication Service Agent Runtime Agent Manager Memory Manager Tool Executor LLM Interface Layer Provider Connectors OpenAI Anthropic vLLM Ollama Embedding Services Data Management Storage Layer Agent State Message History Archival Memory Core Memory Tool Configurations Processing Layer Message Pipeline Memory Management Tool Execution Sandbox Function Call Parser Client Interfaces SDK Layer Python Client TypeScript Client CLI Interface UI Layer Agent Development Environment Web Interface Monitoring Dashboard Supporting Services Infrastructure Docker Runtime Database Migration Configuration Management Security Authentication Authorization API Key Management

This is the mind map that represents the core functionality of the application. It focuses on the key features and functionalities of the application and provides a visual representation of how they are interrelated.

Summary

Letta leverages advanced memory management and agent persistence to redefine how AI services are built and deployed. Its comprehensive development environment and scalability features make it an essential tool for developers seeking to create intelligent, learning agents.

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