Substrate generates raster slide decks with an image model. The only editable
artifacts are two prompts (a per-slide prompt and a deck-level main design
prompt) which both a human (in the UI) and an agent (over MCP) can co-author.
Publisher’s description
What is Substrate?
Substrate is an open-source ai assistants & llm program for Windows from Tyler Gibbs. It is written in TypeScript.
Installation and requirements
Official installers exist for 64-bit as EXE (NSIS). It can be installed for the current user only, without administrator rights. The installer supports unattended (silent) installation.
Updates and version history
The current version is 0.3.6, released on August 17, 2026. 2 versions are listed since June 18, 2026, each with links to its own installer files.
Popularity and file types
The source code on GitHub (tylergibbs1/substrate) has 1 stars. Similar programs include Claude Code, Codex CLI and ChatGPT.
Project description on GitHub: “Substrate — desktop app for AI-generated raster slide decks where the prompt is the only editable artifact. Effect/Node + React/Vite + Electron.”
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Documented silent install
- Installs without administrator rights
Cons
- No native ARM64 build
In short: Substrate is an open-source ai assistants & llm tool for 64-bit PCs. Administrators can deploy it unattended.
Is Substrate 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:
B5A83D9AEF360EF334FDBC8DCCC3120514F7D3C12B990B712B7DEB150283AEFC· 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 |
|---|---|---|---|
| 0.3.6Latest | August 17, 2026 | — | 64-bit EXE (NSIS) |
| 0.3.4 | June 18, 2026 | — | 64-bit EXE (NSIS) |
Install from the command line
Silent install ›winget install --id Tylergibbs1.Substrate -eSubstrate-Setup-0.3.6.exe /SRelated guide: How to use winget: install and update apps
Information
- Publisher
- Tyler Gibbs
- Category
- AI assistants & LLMs
- Licence
- MIT
- Price
- Free
- Source code
- github.com/tylergibbs1/substrate
- Written in
- TypeScript
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- EXE (NSIS)
- Version
- 0.3.6
- Released
- August 17, 2026
- Added to the catalogue
- June 18, 2026
- Versions listed
- 2
- GitHub stars
- 1
- Website
- github.com
- winget ID
- Tylergibbs1.Substrate
Ratings and reviews
No reviews yet. Be the first to rate it.
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Frequently asked questions
Is Substrate free?
Yes. Substrate is open-source software under the MIT licence.
Is Substrate 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 Substrate 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.
Can Substrate be installed silently?
Yes. The silent install page lists the exact command for each installer.
Does Substrate 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 Substrate?
The versions page lists all 2 versions with links to their official installer files, back to June 18, 2026.
Can I use Substrate without administrator rights?
Yes, there is a per-user installer that does not need administrator rights.
What are alternatives to Substrate?
Claude Code, Codex CLI, ChatGPT, GPT4All and T3 Code. The alternatives page compares them.
