Letta

AI agent infrastructure company. Previously known for MemGPT. Building tools for agent memory and context management.

Key Contributions (from wiki sources)

• Context Repositories — git-backed filesystem for agent memory. Agents manage their own context files. Multi-agent concurrent memory via git worktrees. Source
• MemGPT — earlier work on virtual memory for LLMs using tool-based memory management
• Memory skills — initialization, reflection (sleep-time), defragmentation

Connections

• Agent Memory
• Context Engineering