letta-ai/letta
Letta is the platform for building stateful agents: AI with advanced memory that can learn and self-improve over time.
Letta helps developers integrate AI agents that learn and remember over time into their applications. You provide the agent with initial knowledge and tools, and it generates responses that reflect its past interactions and learned information. This is for software developers and AI engineers who want to build more sophisticated and context-aware AI solutions.
21,550 stars. Actively maintained with 176 commits in the last 30 days.
Use this if you are a software developer building applications and need to incorporate AI agents that can maintain context, learn from interactions, and self-improve over time, behaving more like a persistent digital assistant.
Not ideal if you are an end-user looking for a pre-built, ready-to-use AI assistant, or if you only need a stateless AI model for single-turn queries.
Stars
21,550
Forks
2,260
Language
Python
License
Apache-2.0
Category
Last pushed
Mar 13, 2026
Commits (30d)
176
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