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Your iPhone Can Now Control Your Windows PC: Codex Computer Use Arrives on Windows

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On May 29, 2026, OpenAI shipped something that changes how small business owners think about their computers. The Codex desktop app — OpenAI’s AI agent that can see, click, and type on your screen — came to Windows for the first time. And it brought a twist: you can now monitor and steer that work from your phone.

It’s one thing to have an AI that writes code. It’s another to have an AI that can operate your actual business software — your accounting tool, your CRM, your email client — while you’re standing in line for coffee.

Quick Summary

  • What happened: OpenAI’s Codex app (v26.527) launched Computer Use on Windows 11, plus mobile remote monitoring via the ChatGPT iPhone/Android app
  • Why it matters: Small business owners can now have an AI agent work across their Windows desktop apps while supervising from their phone
  • Who it helps: Solo operators, service business owners, and anyone who wishes they had an extra pair of hands at the computer
  • Cost: Codex Pro $100/month (standard capacity from June 1); available on ChatGPT Plus, Pro, Business, and Enterprise plans
  • Catch: Foreground-only on Windows (vs. macOS background mode); Windows 11 only; may have regional rollout delays

What Actually Changed

Before May 29, Codex Computer Use — where the AI can visually interact with your desktop — was macOS-only. Windows users could use Codex for coding and file work but couldn’t ask it to operate other applications.

The May 29 update changed three things:

1. Codex Can Use Your Windows PC

Toggle Computer Use on in Codex settings, and the AI can see your screen, click buttons, type fields, and navigate apps. Say ‘open our invoicing software, pull up last month’s unpaid invoices, and draft reminder emails’ — Codex does it by operating those apps.

2. Your Phone Becomes a Remote Control

Through the ChatGPT mobile app, you can see what Codex is doing on your PC, review screenshots, approve work, and start new tasks — all from your phone. OpenAI uses a secure relay layer that keeps machines reachable without public internet exposure.

3. Enterprise SSH and Remote Access

Remote SSH went generally available, meaning Codex connects into managed remote environments. Your office PC, a home server, or a cloud machine can all be accessible through the same relay.

What This Means for a Small Business Owner

  • End-of-month reconciliation: Codex opens your accounting software, exports transactions, cross-references bank statements, flags discrepancies — while you’re having dinner.
  • Customer follow-up: ‘Check our CRM for anyone not contacted in 30 days, draft a check-in email for each.’ Codex navigates the CRM, finds records, composes messages.
  • Proposal prep: Codex pulls specs, opens templates, fills details, exports PDF — all while you’re on another call.

Limitations

  • Windows 11 only, foreground mode: Can’t run silently in background like macOS.
  • Regional: Not available EEA/UK/Switzerland at launch.
  • Pricing: Codex Pro 2x promo ended June 1; now standard $100/month capacity.
  • Early bugs: Some blank mobile session reports on community forum.

How to Get Started

  1. Install Codex via Microsoft Store or winget on Windows 11.
  2. Enable Computer Use in Settings.
  3. Connect ChatGPT Mobile app (same account).
  4. Start small: ‘Open my CRM, find last 5 deals, summarize in a table.’

Sources

Frequently Asked Questions

Do I need a ChatGPT Plus subscription?

Yes. Codex is available to Plus, Pro, Business, and Enterprise subscribers. Codex Pro ($100/month) for heavy use.

Can Codex use any application?

Any visible desktop app — CRM, accounting, email, browser — as long as it’s open and visible on screen.

Is my data safe?

Secure relay layer keeps machines reachable without public exposure. Files stay on your machine. For sensitive data, connected AI agents offer an alternative.

Does this work on Windows 10?

No. Windows 11 required.

How is this different from SquidBot?

SquidBot uses purpose-built AI agents integrated via APIs. Codex is more general but less reliable. Choose based on whether you need a general assistant or specialized business function.

What to Do Next

If you’re a Windows-first business owner, this is the first time an AI agent can sit at your computer and work while you supervise from your phone. Try one repetitive task this week. And for hands-free automation, SquidBot’s connected agents handle workflows without asking you to supervise. AI follow-up automation and review request automation are good starting points.

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