Claude Cowork vs ChatGPT, Copilot, and Gemini: Which AI Agent Fits Your Work?

The short answer

• Choose Claude Cowork if you want an agent that works across your local files, the browser, and many third-party tools, on Mac or Windows, with an app you can also use on the web and phone.
• Choose Microsoft Copilot Cowork if your company lives in Microsoft 365 and wants the agent inside its Microsoft trust boundary and admin controls.
• Choose ChatGPT Work if your team already runs on ChatGPT and Codex and wants one app for chat, coding, and agent tasks.
• Choose Gemini Spark if your day runs on Gmail, Calendar, Drive, and Docs and you want an assistant that keeps working in the cloud around the clock.

Claude Cowork vs ChatGPT, Copilot, and Gemini at a glance

Based on each vendor's public documentation and announcements as of September 2026. Plans and availability change often, so confirm with the vendor before you buy.

What all four agents now have in common

It is worth being clear about what is no longer a differentiator. All four products take a goal in plain language, break it into steps, call tools, and return a finished file or message rather than a draft to copy and paste. All of them can run work on a schedule or in the background. All of them ask for permission before sensitive actions and let you stop a run. And all of them bill more for long, multi-step tasks than for a quick question, because each step uses the model again.

The real differences sit in three places: which data and apps each agent can reach, where your data is processed, and how the vendor charges when tasks get big. The rest of this page is organized around those three questions.

Claude Cowork vs ChatGPT Work

These two are the closest match. OpenAI launched ChatGPT Work in July 2026 as an agent with built-in Codex that completes tasks across web, mobile, and desktop. Like Claude Cowork, it can use local files and apps in the background, browse with a built-in browser, and schedule work to run on its own. OpenAI also merged Codex into a new ChatGPT desktop app for Mac and Windows.

Where they differ in practice:

• Extensions. Claude Cowork has an open plugin system: skills, connectors, and subagents packaged by role, with official and partner Cowork plugins and private marketplaces for companies.
• Models. ChatGPT Work runs OpenAI's GPT models; Claude Cowork runs Claude. If you already prefer one model family for writing or analysis, that preference carries over.
• Existing habits. If your team already stores projects and custom GPTs in ChatGPT, staying there is simpler.

For a detailed look at the desktop apps, read our Claude Cowork vs ChatGPT desktop comparison.

Claude Cowork vs Microsoft Copilot Cowork

The naming is not a coincidence. Microsoft's Copilot Cowork, generally available since June 16, 2026, runs on Anthropic models (Opus 4.8 and Sonnet 4.6 at launch), with Microsoft's own Cowork 1 model announced as coming soon. It takes a long, multi-tool task and returns a finished result inside Word, Excel, PowerPoint, Outlook, and Teams, grounded in company data through Microsoft's Work IQ.

• Scope. Copilot Cowork is built around Microsoft 365 content and a curated set of partner plugins. Claude Cowork reaches local files, any connected folder, the browser, and a much wider catalog of connectors.
• Governance. Copilot Cowork stays inside the Microsoft 365 trust boundary, inherits sensitivity labels, and plugs into audit logs and eDiscovery. That is a strong reason for regulated Microsoft shops.
• Cost model. Copilot Cowork needs a Microsoft 365 Copilot license and bills each task in Copilot Credits at $0.01 per credit, so a heavy task can cost several dollars. Claude Cowork uses your plan's usage limits instead.

You can also use both: Cowork connects to Microsoft 365 through connectors, which suits teams that work across Microsoft and non-Microsoft tools.

Claude Cowork vs Google Gemini Spark

Google announced Gemini Spark at I/O in May 2026 as a personal agent that runs in the cloud 24/7, even when your phone and laptop are off. It handles tasks, reusable skills, and schedules across Gmail, Calendar, Drive, Docs, Sheets, Slides, YouTube, and Maps, with each integration off by default. It is available to Google AI Pro and Ultra subscribers over 18 in select countries and to select business users.

Compared with Anthropic's agent, Gemini Spark is deeper inside Google's own apps but does not list your desktop files or non-Google tools among its integrations. Cowork's cloud sessions also keep running when you close your laptop, and it can reach local folders whenever the desktop app is online. For developers, Google's Antigravity platform covers the coding-agent side, much like Claude Code does for Anthropic.

Security and privacy differences

• Anthropic. Cloud sessions run in a fresh, isolated sandbox per session with restricted network access, and connector tokens never enter the sandbox. Local files are reached only through folders you connect on the desktop. Team and Enterprise conversation data is not used to train models. See our Cowork security overview.
• Microsoft. Work stays inside the Microsoft 365 trust boundary, with sensitivity labels, audit logs, and eDiscovery, and admins can set spending limits per tenant, group, or user.
• Google. App integrations are off until you turn them on, and Google says the agent does not read your email indiscriminately.
• OpenAI. Business, Enterprise, and Edu plans come with their own admin and data controls; check OpenAI's current enterprise terms for agent tasks.

Whichever you choose, the biggest practical risk is the same: an agent that reads web pages, emails, or shared documents can be targeted by hidden instructions. Our prompt injection guide explains how to limit that exposure.

Claude Cowork vs Notion AI, Zapier, and Make

Notion AI is excellent inside Notion: drafting, summarizing, and answering questions over your workspace. It is not designed to work through files on your computer or across many outside apps. If Notion is your hub, Cowork can still work with it through a Notion connector.

Zapier and Make are rule-based automation platforms (see Claude Cowork vs Make.com, and Cowork vs RPA for desktop bots). You design a fixed workflow once, and it runs the same way every time, which is ideal for high-volume, predictable jobs. Claude Cowork is better for work that needs judgment each time, such as reading a messy folder and deciding what matters. Many teams use both: an automation tool for the repeatable plumbing, and an agent for the thinking.

Claude Cowork vs Claude Code and open source agents

Claude Code is Anthropic's agent for developers, working in a terminal or IDE on codebases. Claude Cowork brings the same agent approach to knowledge work: documents, spreadsheets, research, and email. Our Cowork vs Claude Code comparison covers the differences in detail.

If you want model freedom, Linux support, or a free app with your own API key, look at the open source Claude Cowork alternatives such as OpenWork and Eigent. Expect more setup and fewer managed guardrails.

How to choose: a practical comparison by situation

The best test is a real one. Take one recurring task you do every week, such as turning a folder of notes into a status report, and run it in two agents. Compare the result, the number of corrections you had to make, and the usage it consumed. Our ROI calculator helps put a number on the time saved, and the Cowork pricing guide explains plan limits.

The bottom line

Claude Cowork is no longer the only agent that can do real work, but it is still the most open of the four: it works across local files, the browser, and a large plugin and connector ecosystem, and it runs on desktop, web, and mobile. Copilot Cowork wins on Microsoft governance, Gemini Spark on always-on Google integration, and ChatGPT Work on unifying chat and Codex. Pick the one that matches where your work already lives.

Frequently asked questions