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Lead: On July 9, 2026, the same day OpenAI rolled out the GPT-5.6 family, it shipped a product-level shift: the standalone Codex App sunsets, its capabilities fold into a new ChatGPT desktop app, and OpenAI launches ChatGPT Work—an AI work agent. This is not a minor feature drop; it is OpenAI's clearest step toward a super-app strategy. This guide covers every key point: three-mode unification, 1,400+ plugins, Plan Mode, Computer Use, deliverables, Scheduled Tasks, Codex upgrades, comparison with Claude Cowork, pricing, a five-step getting-started path, strategic significance, and seven FAQs.

1. Pain Points: Three Questions You Are Probably Asking

1. "Did OpenAI kill Codex?"—The standalone app is gone, but Codex lives on as a desktop-only mode with new upgrades: inline diff editing, PR sidebar review, and more. Existing users just update—no reinstall.
2. "Work vs Cowork—what's the difference?"—Work wins on 1,400+ cloud plugins and free desktop access. Cowork wins on local folder sandboxes and native M365 plugins. Most serious teams will end up using both.
3. "Will usage blow up my bill?"—Work and Codex share the same usage-based billing. Longer, more complex tasks consume more quota. OpenAI has not published unit pricing—start with a small task to benchmark.

2. What Actually Happened on July 9?

2.1 The Codex App Is Gone

Starting July 9, 2026, the standalone Codex App (desktop) officially sunsets. All capabilities migrate into the new ChatGPT desktop app. Existing Codex users do not need a fresh install—update the Codex App and it upgrades to the new ChatGPT desktop client. Projects, settings, and workflows are preserved.

The previous ChatGPT desktop client is renamed ChatGPT Classic and remains available.

2.2 New ChatGPT Desktop App: Three Modes in One

Mode	Purpose	Best For
Chat	Everyday Q&A and conversation	All users
Work	Autonomous cross-app tasks with finished deliverables	Professionals, knowledge workers
Codex	Professional coding agent—reviews, PR management	Developers, engineering teams

All plans including Free can access all three modes on desktop.

2.3 ChatGPT Work: OpenAI's "AI Colleague"

ChatGPT Work is the headline product. It is an AI agent that can work autonomously across apps for hours and deliver finished outputs. You set a goal; it will:

1. Draft an execution plan and wait for your approval (Plan Mode)
2. Connect to Slack, Gmail, Google Drive, and other tools to gather context
3. Complete multi-step tasks independently
4. Deliver a document, spreadsheet, presentation, or web app

The same day, OpenAI also released GPT-5.6 (Sol / Terra / Luna), powering Computer Use for both Work and Codex.

3. ChatGPT Work Core Features

3.1 Cross-Platform Integration: 1,400+ Tools

ChatGPT Work connects to mainstream work tools through a unified plugin directory. Launch partners include:

• Collaboration: Slack, Microsoft Teams, Zoom
• File storage: Google Drive, SharePoint, Dropbox
• Email / calendar: Gmail, Outlook, CRM calendars
• Sales / marketing: Salesforce, HubSpot, LinkedIn, Adobe
• Development: GitHub, Canva, Zapier

Type @app-name in your prompt to pull data from that source—or describe the task and let Work decide where to fetch information.

3.2 Plan Mode: Plan First, Execute Second

For complex tasks, Work lists execution steps before starting. You review and approve the plan. This keeps the agent on track and gives you control at key decision points.

3.3 Computer Use: Direct Machine Control

On desktop, ChatGPT Work gains Computer Use capabilities:

• Read and edit local files
• Browse the web in a built-in multi-tab browser
• Click, type, and move files on your behalf
• Run one-off tasks or set up Scheduled Tasks

OpenAI also announced that its dedicated browser Atlas enters sunset—Work's built-in browser and Computer Use are absorbing that role.

3.4 Deliverables, Not Drafts

Unlike chat AI that offers suggestions, ChatGPT Work ships usable finished outputs:

• Documents—Word/PDF reports, analyses, email drafts
• Spreadsheets—Excel/Sheets data processing, financial analysis
• Presentations—Slides/PPT with template support
• Web apps—interactive pages via Codex Sites

3.5 Scheduled Tasks: Progress While You Are Away

Set tasks to run at specific times, on triggers, or on a recurring schedule. Work keeps advancing even when you are not at your desk.

4. Codex Upgrades After the Merge

Codex did not disappear—it gained new capabilities in the unified app:

• Inline diff editing—edit directly in the diff view
• PR sidebar review—review pull requests without switching screens
• Faster Computer Use—GPT-5.6-driven, noticeably quicker execution
• Multi-repo project support—one project spanning multiple codebases

Developers can set Codex as the default launch mode and even keep the Codex app icon on macOS—the experience barely changes. Desktop Codex projects remain accessible remotely via the ChatGPT mobile app.

5. ChatGPT Work vs Claude Cowork: How to Choose

Anthropic shipped Claude Cowork back in April. Both target "AI work agents," but the design philosophies diverge:

Dimension	ChatGPT Work	Claude Cowork
Runtime	Cloud + desktop hybrid	Local desktop first
File access	Local files on desktop; upload mode on web	Direct control of designated local folders (sandbox)
Integrations	1,400+ plugins, broader coverage	20+ official MCP connectors, native M365
Best for	Cross-web-app, cloud-tool orchestration	File-heavy, repetitive document production
Non-technical UX	High (approachable interface)	Very high (technical concepts hidden)
Pricing	Usage-based (complexity drives cost)	Per-seat ($20/mo Pro and up)
Free tier	Desktop access available	Not available on free
Native M365 plugins	Web-only (no native add-in)	Native Word/Excel/PPT

One-line summary:

• Work lives in browsers and SaaS tools → choose ChatGPT Work
• Work is local files and repetitive document pipelines → choose Claude Cowork

Teams running serious workflows in 2026 will likely use both—Work for cloud orchestration, Cowork for local document assembly lines.

6. How to Get Started (Five Steps)

6.1 Desktop (Recommended—All Plans)

1. Download the new ChatGPT desktop app at chatgpt.com/download (Mac / Windows)
2. If you already have the Codex App, just update it
3. Switch to Work mode in the top bar
4. Connect tools from the plugin directory (Gmail, Slack, Drive, etc.)
5. Describe your task, review the Plan Mode steps, confirm, and let it run

6.2 Web (Select Plans)

• Pro, Enterprise, Edu: available since July 9
• Plus, Business: rolling out over the following days
• Free: web access restricted—use desktop instead

6.3 Mobile

Pro/Enterprise/Edu users get mobile Work first; Plus/Business follow. Monitor and manage Work tasks from your phone—heavy compute still runs on desktop.

7. Pricing

ChatGPT Work is not a separate paid product—it sits inside existing subscription tiers. One caveat:

ChatGPT Work uses usage-based billing, same as Codex. More complex, longer tasks consume more quota. OpenAI has not published unit pricing—run a small test task first.

Plan	Monthly (U.S.)	ChatGPT Work Access
Free	$0	Limited desktop access
Go	$8	Expanded desktop access
Plus	$20	Desktop + web/mobile
Pro	$100–$200	Full access, highest usage limits
Business / Enterprise	Team pricing	Full access + admin console

Enterprise admins can set spend controls in the Admin Console: workspace defaults, group limits, per-user overrides, and quota request workflows.

8. Strategic Significance: The Super-App Shape Emerges

This consolidation marks a turning point:

1. From "best model" to "deepest workflow" competition—GPT-5.6 matters, but the real strategic bet is who embeds deepest in daily work. ChatGPT Work's answer: on your desktop, in Slack, in Google Drive.
2. Codex audience expands beyond developers—of 5 million weekly Codex users, over 1 million already use it for non-coding work. The merge makes those capabilities accessible to everyday knowledge workers.
3. Super-app architecture takes shape—one app holding Chat + Agent + Coding + file control + scheduled tasks + plugin ecosystem. Codex lead Andrew Ambrosino called the merge "just the first step"—unified experience across web, mobile, and desktop is still in progress.

The deeper bet: AI that delivers finished work beats AI that only offers advice. ChatGPT Work and Claude Cowork both test the same hypothesis—knowledge workers do not want another prompt box; they want someone to finish the job.

9. Mac Users: Three Actionable Signals

For Mac developers and knowledge workers, July 9 brings three practical takeaways:

• Desktop is the agent battlefield—Computer Use, local file I/O, and the multi-tab browser land first on Mac/Windows desktop. Web-only ChatGPT users miss Work's core capabilities.
• Codex and Work share one usage pool—running Codex coding tasks and Work cross-app pipelines simultaneously on a Mac means watching unified usage billing so long jobs do not drain your quota.
• Cowork complements Work, not replaces it—local folders and native M365 plugins remain Cowork's home turf; cloud orchestration across Slack/Gmail/Salesforce is Work's. Typical combo: Cowork batch-summarizes a local contract library; Work pulls Salesforce data, generates a weekly report, and posts to Slack.

OpenAI's official blog, The Verge, MacRumors, and Ars Technica confirm the launch coincided with GPT-5.6's post-government-review public rollout—Mac and Windows users can download the new desktop app immediately.

10. FAQ

Q1: Can I still use the standalone Codex App?

No. As of July 9, 2026, the Codex desktop app has merged into the new ChatGPT desktop application. Update your existing install—projects and data are preserved.

Q2: Can free users access ChatGPT Work?

Yes on desktop, with usage limits. Web and mobile are not available to free users.

Q3: How is ChatGPT Work different from ChatGPT Agent mode?

ChatGPT Work is designed for long-running, cross-app tasks that deliver finished outputs. It supports multi-hour autonomous runs, plugin integrations, and Plan Mode. Standard Agent mode suits single-step, short tasks.

Q4: Will ChatGPT Work be expensive?

Usage scales with task complexity—OpenAI has not published per-unit pricing. Run a known task in Plan Mode first to gauge consumption before scaling up.

Q5: Will I lose my Codex projects?

No. After updating, all projects and settings remain intact. You can also access desktop Codex projects from the ChatGPT mobile app.

Q6: How is ChatGPT Work different from ChatGPT Operator?

Operator is a browser automation agent. ChatGPT Work is broader: plugin integrations with external apps, local file access on desktop, deliverable documents, and multi-hour multi-step projects—not single browser sessions.

Q7: Should I switch from Claude Cowork to ChatGPT Work?

Depends on your workflow. ChatGPT Work wins on cloud multi-app orchestration and free desktop access. Claude Cowork wins on local file workflows and native M365 plugins. Many teams use both.

11. Sources

• OpenAI Blog: ChatGPT for your most ambitious work
• The Verge: GPT-5.6 & ChatGPT Work
• ChatGPT Learn Changelog
• MacRumors: ChatGPT Work launch
• Digital Applied: ChatGPT Work agent launch

12. Closing: Run Work Agents on Mac, Offload Peak Load to a Remote Node

The ChatGPT Work and Codex merge makes the Mac desktop OpenAI's primary super-app entry—Computer Use, local files, and 1,400+ cloud plugins work well on a MacBook for short tasks. But multi-hour autonomous agents, multi-repo Codex projects, and Work Scheduled Tasks running together quickly hit unified memory, battery, and foreground-app limits. Pure Windows cloud hosts can run background jobs but fall short on Apple toolchain integration, Metal graphics workloads, and FCP/Resolve pipelines.

A practical split: keep Work/Codex interaction and light tasks on your local Mac, and move long-running agents, batch document pipelines, or 7×24 Scheduled Tasks to a MACGPU remote Mac mini M4 node—Apple Silicon unified memory handles parallel agents well, SSH on-demand start/stop pairs with your local ChatGPT desktop for a "front-end control + back-end persistence" architecture that uses Work's desktop strengths without letting long jobs stall your laptop.