Skip to content
Simon Willison’s Weblog·

🤖ChatGPT Desktop App Packs 1.7GB of Full Python, Node.js, and More

ChatGPT's desktop app is a full dev environment

TL;DR

The ChatGPT desktop app, formerly OpenAI Codex, contains a full Python and Node.js installation, plus Poppler, git, and LibreOffice binaries. This reveals the app's extensive local capabilities.

The ChatGPT desktop app, formerly OpenAI Codex, packs a whopping 1.7GB of data in its ~/.cache/codex-primary-runtime folder. This includes full installations of Python and Node.js, along with native binaries for Poppler, git, and LibreOffice. Developers will find this surprising given the app's primary function as a language model. Why does it matter? It suggests ChatGPT is designed to handle complex tasks locally, enhancing its utility for coding and document processing. The data was accessed on September 1, 2026, at 7:03 pm.

Key Points

1

ChatGPT desktop app's ~/.cache/codex-primary-runtime folder contains 1.7GB of data, including full Python installation.

2

The folder also includes a full Node.js installation, enhancing local development capabilities.

3

Native binaries for Poppler and git are included, supporting document and version control tasks.

4

LibreOffice binaries are present, indicating the app's ability to handle office suite tasks locally.

5

The data was accessed on September 1, 2026, at 7:03 pm, revealing the current state of the app.

Why It Matters

If you're using ChatGPT for coding or document processing, you'll find the local installations of Python, Node.js, and other tools incredibly useful. This setup allows for faster, more efficient local development and document handling without relying on cloud services.

ChatGPTOpenAIdesktop-appPythonNode.jsLibreOffice

Frequently Asked Questions

Why does this matter?

If you're using ChatGPT for coding or document processing, you'll find the local installations of Python, Node.js, and other tools incredibly useful. This setup allows for faster, more efficient local development and document handling without relying on cloud services.

What happened?

The ChatGPT desktop app, formerly OpenAI Codex, contains a full Python and Node.js installation, plus Poppler, git, and LibreOffice binaries. This reveals the app's extensive local capabilities.

Comments

Subscribe to join the conversation...

Be the first to comment

Enjoyed this article?

Get it daily. 7am. Free. Reads in 5 minutes.

Join 3,436 builders reading daily.

Also get