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OpenAI launches Codex app to bring its coding models, which were used to build viral OpenClaw, to more users

By
Beatrice Nolan
Beatrice Nolan
Tech Reporter
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By
Beatrice Nolan
Beatrice Nolan
Tech Reporter
Down Arrow Button Icon
February 2, 2026, 1:00 PM ET
Sam Altman is standing with his arms folded.
OpenAI launches a Codex app as competition heats up with Anthropic’s Claude Code.Florian Gaertner—Photothek/Getty Images

OpenAI is launching a Codex app, a desktop experience for managing the company’s AI coding tools, as competitive pressure to deploy autonomous AI agents heats up.

The desktop app is designed to be more intuitive than earlier versions of Codex, potentially broadening Codex’s appeal beyond the software engineers who have been its primary users so far.

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OpenAI’s move follows rival Anthropic’s debut of a similar application for its popular Claude coding assistant, called Code Cowork, in January. Like the new Codex app, Claude Cowork is designed for non–software developers to start using Claude to build AI agents that work across the software they already have installed on their computer.

OpenAI’s Codex tool has already been credited with some productivity gains. Independent developer Peter Steinberger, creator of the now viral AI tool OpenClaw (which spawned “social network for AI agents” Moltbook), said in a post on X that his productivity had roughly doubled since switching to OpenAI’s Codex. Steinberger has said he built the entire OpenClaw tool with OpenAI’s Codex, despite publicly saying Anthropic’s Claude Opus is the “best general-purpose agent” and the model recommended for use in OpenClaw.

Codex is already being used within OpenAI to build new features and products. According to the company, a four-person engineering team built and shipped the Sora for Android app in just 28 days using Codex.

With the Codex app, OpenAI appears to be trying to shore up users in the developer tools market. The company says that over a million developers have used Codex in the past month, including teams at startups like Harvey and Sierra as well as large enterprises like Cisco.

But OpenAI is in an increasingly cutthroat fight with Anthropic and Google to be the platform on which software developers—and increasingly others, too—build new software applications. Anthropic has reportedly been outpacing OpenAI in enterprise adoption—though OpenAI disputes some of the data—and has positioned itself as an enterprise AI company first and a consumer one second. Claude Code is now used by major companies including Uber, Netflix, Spotify, Salesforce, Accenture, and Snowflake, according to Anthropic.

OpenAI is betting that developers want centralized control over agent workflows. The new app lets users run multiple AI agents at once across different projects, automate repetitive tasks, and monitor what the agents are doing. The company currently recommends using the GPT-5.2-Codex model for coding projects and GPT-5.2 for analysis and writing tasks, with adjustable thinking intensity and personality options.

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About the Author
By Beatrice NolanTech Reporter
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Beatrice Nolan is a tech reporter on Fortune’s AI team, covering artificial intelligence and emerging technologies and their impact on work, industry, and culture. She's based in Fortune's London office and holds a bachelor’s degree in English from the University of York. You can reach her securely via Signal at beatricenolan.08

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