Letta
Letta is a desktop AI agent app for macOS that lets you chat with persistent agents that remember context and can help with coding workflows.
What is Letta?
Letta is a desktop AI agent app for macOS designed for working with persistent assistants that keep memory across sessions. It helps users chat with agents, continue long-running work, and use the same agent setup across desktop, terminal, and cloud workflows. Common uses include exploring codebases, continuing development tasks, managing agent conversations, and connecting external model providers or API keys. Letta also supports switching between agents and conversations, so users can organize different projects or working contexts. The app is aimed at people who want a dedicated desktop interface for AI-assisted work rather than relying only on a browser tab. Published by Letta Inc., it fits best as a productivity tool for users who want an AI workspace with memory-focused agent interactions on Mac.
Key features
- Chat with persistent AI agents that keep memory across sessions
- Switch between agents and separate conversations for different projects
- Explore and work with codebases through an AI-assisted desktop interface
- Connect external model providers and API keys from within the app
- Use the same Letta workflow across desktop, terminal, and cloud environments
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Inspect caches, support files, containers, and login items before cleaning.
Safety overview
Status: Mostly safe
Letta is legitimate desktop software for working with AI agents. For its core purpose, users may choose to connect model-provider accounts, share prompts, and let the app access project files or code they want the agent to work with. That kind of access is normal for an AI productivity app, but you should avoid giving it sensitive files, secrets, or account credentials unless you intend the agent to use them. If you stop using Letta, removing the app can also remove easy access to its saved conversations and local app data unless you back them up first.
Recommendation: Keep Letta if you actively use it for AI-assisted work or coding. If you no longer use it, you can remove the app and then clean up its leftover support files to free space, keeping in mind that doing so may erase locally stored settings or conversation history.
Common paths
/Applications/Letta.app
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