What Letta does
Letta is a developer-focused AI “agent platform” that aims to make LLM applications stateful by providing a long-lived agent harness and memory system. Instead of treating an LLM as stateless, Letta positions its platform as the layer that manages an agent’s persistent state (“memory”), identity, and continual learning loop across ongoing tool use and multi-step tasks.
More
Letta’s product surface includes a managed agent experience (Letta Agent) plus developer tooling—most notably Letta Code (a local-first, memory-first coding agent) and SDK/API options to embed stateful agents into applications. The company’s public messaging emphasizes memory management as the core lever for personalization and improvement over time, and it highlights ongoing research shipping as software (e.g., concepts like the “Context Constitution” and git-tracked memory/repositories).