Codex is available to ChatGPT Pro, Team, and Enterprise users. It's included in those plans at no extra cost.

How is Codex different from ChatGPT?

ChatGPT helps you write code in chat. Codex is an autonomous agent that operates on your actual codebase — reading files, writing code, running tests, and creating pull requests.

What languages does Codex support?

Codex works with any programming language in your repository — it reads and writes code based on context, not a fixed language list.

Codex News

ChatGPT Desktop App for Linux (Preview)

August 11, 2026

via ChatGPT

Now in preview: the ChatGPT desktop app for Linux. Use ChatGPT, ChatGPT Work, and Codex where you already work and build, with your projects and browser workflows on supported Linux systems. Available for desktop variants of Ubuntu 24.04 LTS and 26.04 LTS, Debian 13, and Fedora 43 and 44 — install with .deb or .rpm packages for x64 or ARM64.

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Introducing Agent Plugins

August 6, 2026

Build a plugin once and use it across compatible agent clients. OpenAI introduced Agent Plugins, an open standard developed with AWS, Cursor, GitHub, VS Code, and Vercel that packages Agent Skills and supports MCP server configurations in a shared format.

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GPT-5.6 Price Cuts + Fast Mode for Sol

July 29, 2026

via ChatGPT

OpenAI cut GPT-5.6 Luna's price by 80% and Terra's by 20%, with the lower prices reflected in Codex and ChatGPT Work usage. A new Fast mode for GPT-5.6 Sol in the API delivers up to 2.5x the speed at 2x the standard price. Auto-review in the ChatGPT app and Codex CLI also upgraded from GPT-5.4 to GPT-5.6 Luna, expected to cost about 10x less at the new pricing.

Codex Plugin

June 26, 2026

via Superhuman

Drive Superhuman from wherever you work best — Superhuman now has a Codex plugin.

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Codex Sites

June 6, 2026

Codex Sites can turn your work, ideas, and plans into an interactive website or app your team can share via URL. Rolling out to Business and Enterprise plans.

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Computer Use Windows

June 6, 2026

Computer use now works on Windows — Codex can take action on your Windows computer, with mobile app support to steer tasks on the go.

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Codex Thursday — Locked Mac Use, Appshots, Goal Mode, Advanced Annotation

May 22, 2026

Codex Thursday drops: Codex can now securely use apps on your Mac from your phone — even when your Mac is locked and the screen is off. Appshots bring context from your screen straight into the Codex app. Goal mode (now in app, IDE extension, and CLI) lets you set a goal that Codex works toward for hours or days. Advanced annotation mode lets you directly adjust how web pages look while leaving feedback.

Codex in the ChatGPT Mobile App

May 15, 2026

Codex is now in preview inside the ChatGPT mobile app. Start new work, review outputs, steer execution, and approve next steps from your phone. Codex keeps running on your laptop, Mac mini, or devbox. iOS and Android.

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Codex for Chrome

May 8, 2026

OpenAI shipped Codex for Chrome — a Mac and Windows extension that runs Codex inside your browser, in parallel across tabs in the background. Acts on signed-in sites (Gmail, LinkedIn, Salesforce, internal tools), writes and runs code to navigate pages and complete tasks. Picks the best tool per step — plugins, in-app browser, or Chrome for logged-in sites. (Available in the Codex app today, all regions except EU and UK.)

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Codex Workflow Importer

May 2, 2026

OpenAI released a Codex workflow importer — bring your settings, plugins, agents, and project config from other coding tools in a few clicks.

Codex for (Almost) Everything

April 18, 2026

Codex for almost everything. It can now use apps on your Mac, connect to more tools, create images, learn from previous actions, remember how you like to work, and take on ongoing and repeatable tasks.

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