opencodex is a universal provider proxy for OpenAI Codex, Claude Code, Claude Desktop, and Grok Build: a local proxy that lets them run on many different LLM providers from a single port, translating between API wire formats.
Features:
- Works with Anthropic, Google, xAI, Groq, OpenRouter, Azure, DeepSeek, Ollama, and 40+ other built-in providers.
- Supports streaming, tool calls, reasoning, and images.
- Handles OAuth logins and a ChatGPT account pool.
- Native model picker in the Codex app, sub-agents, and search/vision sidecars.
Publisher’s description
What is OpenCodex?
OpenCodex by opencodex is open-source Windows software in the ai assistants & llms category. It is written in TypeScript.
Installation and requirements
The publisher provides MSI installers for 64-bit Windows. Installation asks for administrator rights. A silent install is possible with the installer’s documented switches. An MSI package is available for deployment with Group Policy, Intune or Configuration Manager.
Updates and version history
The current version is 2.92.0, released on October 24, 2026. The version history goes back to October 19, 2026: 4 releases, all linked to the official files. The last update is less than a month old.
Popularity and file types
The source code on GitHub (lidge-jun/opencodex) has 17,766 stars. Similar programs include Claude Code, Codex CLI and oh-my-pi.
Project description on GitHub: “Universal provider proxy for OpenAI Codex & Claude Code — use any LLM (Claude, Gemini, Grok, DeepSeek, Ollama…) with Codex CLI, App, SDK, and Claude Code”
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- MSI package for managed deployment
- Documented silent install
- Updated in the last two months
- Large user base
Cons
- No native ARM64 build
- Installation needs administrator rights
In short: OpenCodex is an open-source ai assistants & llm tool for 64-bit PCs. Administrators can deploy it unattended.
Is OpenCodex 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:
28F248D592004CB9E749EB219DB5C295F614BAF4A7F9AEE9FF8B246B7F636205· 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 4 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| 2.92.0Latest | October 24, 2026 | — | 64-bit MSI |
| 2.91.0 | October 22, 2026 | — | 64-bit MSI |
| 2.90.0 | October 21, 2026 | — | 64-bit MSI |
| 2.89.0 | October 19, 2026 | — | 64-bit MSI |
Install from the command line
Silent install ›winget install --id lidge-jun.OpenCodex -emsiexec /i OpenCodex-2.92.0-windows-x64.msi /qn /norestartmsiexec /x {9B11F261-EE94-4B3E-8B7D-B133018DBF71} /qn /norestartRelated guide: How to use winget: install and update apps
Information
- Publisher
- opencodex
- Category
- AI assistants & LLMs
- Licence
- MIT
- Price
- Free
- Source code
- github.com/lidge-jun/opencodex
- Written in
- TypeScript
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- MSI
- Version
- 2.92.0
- Released
- October 24, 2026
- Added to the catalogue
- October 19, 2026
- Versions listed
- 4
- GitHub stars
- 17,766
- GitHub forks
- 1,375
- Website
- opencodex.me
- winget ID
- lidge-jun.OpenCodex
- MSI product code
- {9B11F261-EE94-4B3E-8B7D-B133018DBF71}
Ratings and reviews
No reviews yet. Be the first to rate it.
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Frequently asked questions
Is OpenCodex free?
Yes. OpenCodex is open-source software under the MIT licence.
Is OpenCodex 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 OpenCodex 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 OpenCodex be installed silently?
Yes. The silent install page lists the exact command for each installer, including msiexec for the MSI package.
Does OpenCodex 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 OpenCodex?
The versions page lists all 4 versions with links to their official installer files, back to October 19, 2026.
What are alternatives to OpenCodex?
Claude Code, Codex CLI, oh-my-pi, ChatGPT and GPT4All. The alternatives page compares them.
