Claude Goes Mobile: Chasing Codex and Working Without a Computer

What’s New in Claude Cowork

Anthropic announced that Claude Cowork is no longer confined to the desktop app; it is now available on three platforms—desktop, web, and mobile—so conversations and files follow the user’s account across devices. The rollout is in beta, starting with Max users and expanding to other plans in the coming weeks.

Key Changes

Work follows you : Start a task on a computer, check progress on a phone, and finish it anywhere.

Tasks keep running when the computer is off : Closing the laptop does not stop Claude; scheduled tasks can execute without any device being powered on.

Human‑in‑the‑loop decisions stay on your device : When Claude reaches a decision point that only you can make, it pauses and pushes the question to your phone for approval.

“I built a dashboard to track client status while traveling, started the workflow on my laptop, and continued it on my phone during the flight. Claude kept the thread alive and handed me the final output.” – Armmand Hosseini, Customer Success

How the Mobile and Web Experience Works

The continuity is powered by “remote sessions.” Claude’s work runs on Anthropic’s servers, not on the user’s machine, and all session data is stored in the Claude account. This architecture enables three direct benefits: the cloud continues processing after the laptop is closed, scheduled tasks run without any device online, and the same set of conversations and files is visible on desktop, web, and mobile.

Usage Data Reveals Real‑World Applications

Anthropic sampled 1.2 million anonymous sessions from over 60 000 organizations (May 11‑31, 2026) and classified them into 20 categories. The most surprising finding is that more than 90 % of Cowork usage is not coding. The top categories are:

Business processes & operations – 33.4 %

Content creation & copywriting – 16.4 %

Software development – 8.7 %

DevOps & infrastructure – 7 %

Research & intelligence – 6.4 %

Data analysis & BI – 5.8 %

Document processing – 4.1 %

Sales & revenue operations – 4 %

These “fragmented work” tasks—such as reconciling accounts, drafting PPTs, or turning meeting notes into client presentations—are chores that most knowledge workers dislike but must do, which explains why Anthropic prioritized a mobile experience.

Is Claude Chasing Codex?

From a product‑shape perspective, Claude Cowork mirrors Codex: cloud execution, mobile hand‑off, continuous background processing, and scheduled triggers—all features Codex introduced for software engineers. However, Codex is focused on programming, whereas Cowork’s usage data shows a broader ambition to serve all knowledge workers, from finance to HR to marketing.

Getting Started

Web : Visit claude.ai, select Cowork from the Home page message box.

Mobile : Update to the latest iOS or Android Claude app and open Cowork from the side menu.

Desktop : Download the desktop app for the full feature set.

Anthropic recommends starting with a small, already‑in‑progress task—pointing Claude at a folder, an email thread, or a half‑finished PPT—and asking it to complete the work.

Conclusion

The update adds web and mobile front‑ends, but the deeper impact is Anthropic’s move to embed AI‑driven “task handing” into the entire workday, not just the desk. The benefits—cloud‑run agents, uninterrupted background work, and cross‑device continuity—address the core limitation of the earlier desktop‑only Cowork. Limitations remain: the beta is limited to Max users, and deep‑file or browser automation still requires the desktop app.

With 90 % of usage falling outside programming, the next battlefield for AI agents is clearly the fragmented, non‑technical chores that occupy most knowledge workers’ time.