AgentIndex icon
AgentIndex
letta logo
letta
★ 25.2k
vs
Compartment logo
Compartment
★ 584

letta vs Compartment

letta: Letta is a powerful platform for building stateful AI agents equipped with advanced memory, enabling them to learn and self-improve over time. It provides both a command-line interface for local agent execution and a comprehensive API with Python and TypeScript SDKs for seamless integration into applications.; Compartment: Compartment provides durable, encrypted, and offline-first memory for AI agents, allowing them to retain decisions and preferences permanently on your local machine. It offers fast hybrid search, robust security features including AEAD encryption, and easy integration with popular AI agents like Claude, Hermes, and OpenClaw without needing cloud accounts or API keys.

01

TL;DR

letta logo
lettaMemory & Context · ★ 25.2k
When to choose:
  • You want a long-lived agent that remembers past work and rewrites its own memory and context over time.
  • You want one agent reachable from CLI, desktop, browser, mobile and messaging apps, with subagents, schedules and hooks.
  • You want memory you can inspect: the README says context is tracked in git and can sync to your own repository.
When to skip:
  • You only need to add memory to an agent you already use through MCP; a small MCP memory server is a lighter fit.
  • You rely on older Letta tutorials or the V1 API server: the project restructured, and the V1 server is retired.
  • You want everything to work without signing in: Letta Cloud is the default backend and some features need it.
Read letta full review →
Compartment logo
CompartmentMemory & Context · ★ 584

Providing long-term memory for AI agents to improve performance over time.

Read Compartment full review →
02

Side-by-Side Comparison

Field
letta logoletta
Compartment logoCompartment
Category
Memory & Context
Memory & Context
Stars
★ 25.2k
★ 584
License
Apache-2.0
Apache-2.0
Install Command
npm install -g @letta-ai/letta-code
pip install compartment && compartment init
Updated
5d ago
3d ago
Open Source
Yes
Yes
Website
↗ Visit
↗ Visit
GitHub
↗ GitHub
↗ GitHub
Tags
Stateful AI, Agent Platform, Advanced Memory
Agentic Memory, Offline-first, Encrypted Storage
03

Features

letta logoletta
01Build stateful AI agents with advanced memory
02Agents capable of learning and self-improvement over time
03CLI tool for running agents locally in your terminal
04Comprehensive API for integrating agents into applications
05Support for skills and subagents; fully model-agnostic
Compartment logoCompartment
01Durable and encrypted agentic memory stored locally.
02100% offline operation with no network, API keys, or cloud accounts.
03Fast hybrid semantic and keyword search with sub-20ms latency.
04Pre-seeded knowledge base with 6,718 curated facts available at install.
05Cryptographic deletion and hash-chained audit logs ensure data security and integrity.
04

Use Cases

letta logoletta
↳Running AI agents locally in your terminal for coding and general tasks.
↳Integrating stateful AI agents into custom applications using the API and SDKs.
↳Developing self-improving AI systems that adapt and learn continually.
Compartment logoCompartment
↳Providing long-term memory for AI agents to improve performance over time.
↳Enabling AI agents to operate effectively offline with a rich knowledge base.
↳Securely storing sensitive agentic data, decisions, and preferences locally.
↳Sharing a single, encrypted memory vault across multiple AI agents and projects.
↳Automatically preserving full conversation context before agent summarization or compaction.
05

Best For

letta logoletta
Most PopularEssentialTrending
Compartment logoCompartment
—
FAQ

FAQ

What is the difference between letta and Compartment?
Both letta and Compartment are in the Memory & Context category. letta has 25.2k stars, while Compartment has 584 stars.
Which is better, letta or Compartment?
The best choice depends on your use case. Choose letta if Running AI agents locally in your terminal for coding and general tasks., and Compartment if Providing long-term memory for AI agents to improve performance over time..
Is letta free or open source?
Yes, letta is open source on GitHub (Apache-2.0).
Is Compartment free or open source?
Yes, Compartment is open source on GitHub (Apache-2.0).
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