letta
★ 25.2k
vs
ditto
★ 298
letta vs ditto
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.; ditto: Ditto is a tool that analyzes your past AI agent coding sessions to automatically create a personalized working profile. This profile helps AI agents understand your specific work habits, design preferences, and writing style, making them act more like you.
01
TL;DR
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.
dittoMemory & Context · ★ 298
Customize AI agents to understand your definition of 'done,' preferred debugging methods, and UI design principles.
02
Side-by-Side Comparison
Field
lettadittoCategory
Memory & Context
Memory & Context
Stars
★ 25.2k
★ 298
License
Apache-2.0
MIT
Install Command
npm install -g @letta-ai/letta-code
npx skills add ohad6k/ditto@ditto
Updated
5d ago
1w ago
Open Source
Yes
Yes
Tags
Stateful AI, Agent Platform, Advanced Memory
AI Agents, Personalization, Context Management
03
Features
letta01Build 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
ditto01Mines real coding-agent session logs (e.g., Claude Code, Codex, Copilot CLI) to extract implicit user behaviors.
02Generates a private, local working profile (`you.md`) that AI agents read before every task.
03Distinguishes and loads separate layers for work, design, and writing profiles based on the task.
04Ensures privacy by processing logs locally with best-effort redaction of secrets.
05Renders a shareable 'profile card' summarizing key laws and traits.
04
Use Cases
letta↳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.
ditto↳Customize AI agents to understand your definition of 'done,' preferred debugging methods, and UI design principles.
↳Improve agent communication to match your actual working voice and avoid repetitive explanations.
↳Enhance agent rejections to align with what you typically reject on sight (e.g., 'fix the one thing,' not rewriting).
↳Develop a consistent persona for multi-agent systems without explicitly writing down all rules.
05
Best For
lettaMost PopularEssentialTrending
ditto—
FAQ
FAQ
What is the difference between letta and ditto?
Both letta and ditto are in the Memory & Context category. letta has 25.2k stars, while ditto has 298 stars.
Which is better, letta or ditto?
The best choice depends on your use case. Choose letta if Running AI agents locally in your terminal for coding and general tasks., and ditto if Customize AI agents to understand your definition of 'done,' preferred debugging methods, and UI design principles..
Is letta free or open source?
Yes, letta is open source on GitHub (Apache-2.0).
Is ditto free or open source?
Yes, ditto is open source on GitHub (MIT).
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