Your coding agent forgets everything when the session ends, and most of it when the context
is compacted. Leteo is the memory it keeps: decisions, bug fixes, conventions and the
discoveries that were expensive to make, stored in a local SQLite database and handed back
when they are relevant.
One binary, no server, no API key. It speaks the Model Context Protocol over stdio and
installs lifecycle hooks, so saving and recalling happen without being asked. Nothing leaves
the machine unless cloud replication is turned on for a named project.
Publisher’s description
What is Leteo?
Leteo is an open-source ai assistants & llm program for Windows from Alexis Sanabria Lopez. It is written in Rust.
Installation and requirements
Official installers exist for 64-bit as Portable. It runs without installation (portable).
Updates and version history
The current version is 0.4.2, released on October 17, 2026. 2 versions are listed since August 12, 2026, each with links to its own installer files. The last update is less than a month old.
Popularity and file types
The source code on GitHub (asanabrial/leteo) has 4 stars. Similar programs include Codex CLI, Claude Code and OpenWork.
Project description on GitHub: “Persistent memory for AI coding agents. MCP server + lifecycle hooks that give Claude Code, Codex and Cursor long-term memory across sessions — one Rust binary, one local SQLite database, no server.”
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Portable: runs without installation
- Updated in the last two months
Cons
- No native ARM64 build
In short: Leteo is an open-source ai assistants & llm tool for 64-bit PCs.
Is Leteo safe to download?
- The file is served by github.com, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
6D779AA43AC36599AC8CA886A554390D643FDC32EE3F7E6FE50CE65B3219D804· Open the VirusTotal report for this hash - The link has not been checked yet
- The source code is public
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 2 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| 0.4.2Latest | October 17, 2026 | — | 64-bit ZIP |
| 0.1.2 | August 12, 2026 | — | 64-bit ZIP |
Install from the command line
Silent install ›winget install --id asanabrial.leteo -eRelated guide: How to use winget: install and update apps
Information
- Publisher
- Alexis Sanabria Lopez
- Category
- AI assistants & LLMs
- Licence
- MIT
- Price
- Free
- Source code
- github.com/asanabrial/leteo
- Written in
- Rust
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- Portable
- Version
- 0.4.2
- Released
- October 17, 2026
- Added to the catalogue
- September 25, 2026
- Versions listed
- 2
- GitHub stars
- 4
- GitHub forks
- 1
- Website
- github.com
- winget ID
- asanabrial.leteo
Ratings and reviews
No reviews yet. Be the first to rate it.
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Frequently asked questions
Is Leteo free?
Yes. Leteo is open-source software under the MIT licence.
Is Leteo safe to download?
The download comes from github.com, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install Leteo with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Does Leteo run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.
Where can I download an older version of Leteo?
The versions page lists all 2 versions with links to their official installer files, back to August 12, 2026.
Can I use Leteo without administrator rights?
Yes, it is portable: unpack and run it.
What are alternatives to Leteo?
Codex CLI, Claude Code, OpenWork, ChatGPT and GPT4All. The alternatives page compares them.
