Graphenium logo
Graphenium
★ 28
vs
letta logo
letta
★ 25.2k

Graphenium vs letta

Graphenium: Graphenium provides a provenance-aware structural memory for AI coding agents, transforming code repositories into persistent, queryable architecture graphs. This allows agents to efficiently navigate large codebases, understand relationships with confidence, and preserve context across sessions, saving tokens and improving reasoning.; 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.

01

TL;DR

Graphenium logo
GrapheniumMemory & Context · ★ 28

Efficient navigation of large codebases for AI agents.

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.
02

Side-by-Side Comparison

Field
Graphenium logoGraphenium
letta logoletta
Category
Memory & Context
Memory & Context
Stars
★ 28
★ 25.2k
License
MIT
Apache-2.0
Install Command
curl -fsSL https://raw.githubusercontent.com/lambda-alpha-labs/Graphenium/main/install.sh | sh
npm install -g @letta-ai/letta-code
Updated
3mo ago
5d ago
Open Source
Yes
Yes
Tags
Code Graph, AI Coding Agents, Repository Analysis
Stateful AI, Agent Platform, Advanced Memory
03

Features

Graphenium logoGraphenium
01Persistent, Queryable Repository Graph
02Provenance-Aware Trust Model for Relationships
03Symbol-Level Diff and Blast-Radius Analysis
04Policy-Based Quality Gates for CI/CD
05Agent-First MCP Interface for Structured Queries
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
04

Use Cases

Graphenium logoGraphenium
↳Efficient navigation of large codebases for AI agents.
↳Providing architecture maps for AI agent orientation.
↳Performing impact analysis for code changes and refactoring.
↳Enforcing CI trust gates and improving code review efficiency.
↳Persisting repository structural memory across AI agent sessions.
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.
05

Best For

Graphenium logoGraphenium
—
letta logoletta
Most PopularEssentialTrending
FAQ

FAQ

What is the difference between Graphenium and letta?
Both Graphenium and letta are in the Memory & Context category. Graphenium has 28 stars, while letta has 25.2k stars.
Which is better, Graphenium or letta?
The best choice depends on your use case. Choose Graphenium if Efficient navigation of large codebases for AI agents., and letta if Running AI agents locally in your terminal for coding and general tasks..
Is Graphenium free or open source?
Yes, Graphenium is open source on GitHub (MIT).
Is letta free or open source?
Yes, letta is open source on GitHub (Apache-2.0).
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