Letta Alternatives
Framework for building stateful AI agents with persistent memory, formerly MemGPT
Letta, formerly MemGPT, is a platform for building AI agents with persistent memory.
Explore 26 alternatives to Letta across 1 category. Each tool listed below shares at least one category with Letta.
Top Letta alternatives at a glance
- AutoGen. Microsoft's framework for building multi-agent AI applications with event-driven messaging
- CrewAI. Framework for orchestrating role-playing, autonomous AI agents.
- LangGraph. Low-level framework for building stateful, long-running AI agents with graph-based orchestration
- Composio. Tool integration platform connecting AI agents to 1,000+ apps with managed auth and execution
- Smolagents. Lightweight Python agent framework from Hugging Face where agents write Python code instead of JSON tool calls
🕵️♀️ Agents
Mastra
TypeScript-first AI framework for building agents, RAG pipelines, and workflows
Google ADK
Open-source agent development kit from Google for building multi-agent systems
Fixie
The fastest way to build conversational AI agents
Superagent
Prototype and deploy agents powered by large language models.
Dust
The operating system for AI agents
Frequently asked questions
What are the best alternatives to Letta?
Based on category overlap and popularity, the top alternatives to Letta include: AutoGen (Microsoft's framework for building multi-agent AI applications with event-dri...); CrewAI (Framework for orchestrating role-playing, autonomous AI agents.); LangGraph (Low-level framework for building stateful, long-running AI agents with graph-...); Composio (Tool integration platform connecting AI agents to 1,000+ apps with managed au...); Smolagents (Lightweight Python agent framework from Hugging Face where agents write Pytho...). See all 26 alternatives compared on this page.
Is there a free alternative to Letta?
Yes. 16 alternatives to Letta offer a free tier or free trial: LangGraph, Composio, OpenAI Agents SDK, Mastra, Google ADK, AgentOps, and more. Use the comparison above to find the best fit for your use case.
Are there open-source alternatives to Letta?
Yes. 19 open-source alternatives to Letta are listed here: AutoGen, CrewAI, LangGraph, Composio, Smolagents, OpenAI Agents SDK, and more. Open-source tools can be self-hosted for full control over data and infrastructure.
What is Letta?
Letta, formerly MemGPT, is a platform for building AI agents with persistent memory. Originating from UC Berkeley research, it implements an OS-inspired memory architecture where agents manage core memory (in-context, like RAM) and archival memory (external storage, like disk). This lets agents l... See 26 alternatives to Letta across 1 category.
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