ChatGPT Work vs
Claude Cowork

Here’s the shift almost everyone is missing. You don’t prompt these tools one question at a time anymore. You hand over an outcome, and the tool does the whole job.

Type "Analyze last quarter’s sales and give me the three biggest opportunities." Instead of a chat reply, the tool connects to your apps, works through the numbers across many steps, and comes back with a finished spreadsheet, deck, doc or even a small web app. That’s what people mean by agentic.

OpenAI launched ChatGPT Work on July 9, 2026 (Reuters). Claude Cowork came first, and as of September 16 it isn’t a separate tab anymore. Everything Cowork does now works from any regular Claude conversation, rolling out to Pro, Max and Ultra first (Anthropic). I still call it Cowork below, because that’s the name most people know.

Cowork launched as a research preview in January 2026, went generally available on the desktop app April 9, and reached web and mobile in July. Your tasks follow you across devices, you can schedule recurring work, and by default Claude asks before it takes an action.

In my experience it feels like a partner. It asks more clarifying questions before it starts, explains what it’s doing, and checks in before bigger decisions instead of charging ahead.

Reach for it when the task is fuzzy, the stakes are high, or you want a check-in before it commits.

Work launched on GPT-5.6, and OpenAI has since added its GPT-6 models to it. It can run for hours, pauses for your approval on important actions, and connects to your tools through a Plugins directory like Google Drive, Gmail, Slack and GitHub.

To me it feels more proactive. You hand it an outcome and it starts moving. I noticed it most when building software, internal tools and small automations. I’d describe what I wanted and it would build a fast first version instead of asking me ten questions first.

Reach for it when you know exactly what you want and want it done fast, especially tools and automations.

Both now run their tasks in the cloud. Since October 6, new Cowork tasks on Pro, Max and Ultra run on Anthropic’s servers, but Claude can still reach the folders you connect on your computer through the desktop app while it’s open (Anthropic help center). That makes Claude strong on the stuff already sitting on your laptop, like downloads, spreadsheets, PDFs and file cleanup.

ChatGPT Work is strongest when your day already runs through cloud apps, research and analysis, and you want polished docs, decks and reports out the other side.

1. Extend it with: ChatGPT uses Plugins. Claude uses skills, connectors and plugins. (OpenAI is retiring custom GPTs, so don’t build new workflows on them.)
2. Team controls: both let admins on business plans decide which tools and actions are allowed. Check your own plan before you roll either out to a team.

1. You want check-ins, or the stakes are high: Claude. It asks and pauses before big moves.
2. You know the outcome and want it fast: ChatGPT Work. It starts executing right away.
3. You’re building tools or automations: ChatGPT Work is where it clicked for me.
4. Your work lives in local files and folders: Claude, through the desktop app.
5. Your work lives in cloud apps, research and docs: ChatGPT Work.

Still torn on a specific job? Paste this into either tool and let it make the call with you.