Artificial Intelligence
●10 min read●January 19, 2026

What Is Claude Cowork? Mac and Windows Guide

Claude Cowork explained: the new merged Claude experience, older accounts, cloud tasks, local files, scheduling, and compliance controls.

Paras Tiwari
Paras TiwariFounder, Spectrum AI Labs
What Is Claude Cowork? Mac and Windows Guide

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TL;DR

The short version: In the new Claude experience, Cowork and chat share one conversation. Describe the task without choosing a mode, and Claude can work through the steps and create finished files. Cloud tasks keep running after you close your laptop. The rollout starts with Pro and Max, so some accounts still show separate Chat and Cowork options. Local file or app access needs Claude Desktop open and the computer awake.

Claude Cowork key details
Updated October 2, 2026
  • Claude Cowork is available on Claude Desktop for macOS and Windows.
  • Cowork currently supports Pro, Max, Team, and Enterprise; the merged experience starts with Pro and Max.
  • The new Claude experience merges Cowork and chat on web, desktop, and mobile, with no Cowork switch.
  • Cloud tasks can continue with the laptop closed; local file or app access needs Desktop open and the computer awake.
  • Claude can read and write local files in folders you connect.
  • Cloud tasks run on Anthropic's servers; existing local sessions run on the device with code in an isolated virtual machine (VM).
  • Projects in Cowork can store related tasks, files, links, instructions, and memory.
  • The Compliance API lets eligible organizations retrieve Cowork activity and conversation records; check current help for separate audit logs and exports.

Claude Cowork lets Claude carry out a task, such as turning source files into a report or spreadsheet. Anthropic announced on September 16, 2026 that Cowork and chat are becoming one Claude. In the new experience, you ask for the work in a conversation and Claude chooses the tools it needs.

The merged experience is rolling out to Pro and Max first on web, desktop, and mobile. Team and Free are due to follow, and Enterprise admins get at least 30 days' notice. Even accounts on the same plan can move at different times. If your message box still shows Chat and Cowork, keep using that older selector. Claude Desktop on macOS or Windows is still needed for access to files and apps on your computer.

Mac + Windows
desktop support
Pro + Max
merged experience rollout
Local files
optional access
Projects
with memory

What is Claude Cowork?

How Claude carries out a task.

Claude Cowork lets you describe an outcome and have Claude work through the steps. In the new experience, any conversation can become a task. Anthropic's examples include formatted documents, organized files, research summaries, spreadsheets, presentations, scheduled tasks, and project workspaces.

Claude can take actions as well as answer questions. It can organize files in a folder you connect or create a spreadsheet with formulas. On accounts with the older interface, choose Cowork for this work. In the merged experience, describe it in the conversation you already have open.

Plain-English definition

Cowork is Claude doing work over several steps. Cloud tasks run on Anthropic's servers. Claude Desktop connects those tasks to local folders and apps when you allow access.

How Cowork works

The architecture in Anthropic's current docs.

Cloud sessions run on Anthropic's servers in an isolated temporary workspace. Both task coordination and code execution happen there. When a cloud task needs a connected local file or app, it reaches your computer through Claude Desktop. Closing Desktop removes that access, but the cloud session can keep running.

Existing local desktop sessions use two environments on your device. The agent loop, which coordinates the task and its tools, handles connected-folder access and local plugins. Code runs in a separate Linux virtual machine (VM), isolated from your main operating system by Apple Virtualization.framework on macOS or Hyper-V on Windows. This describes local sessions, rather than every Cowork task.

PartWhat Anthropic says it does
Cloud sessionsTask coordination and code run in an isolated workspace on Anthropic's servers.
Existing local sessionsThe agent loop runs on the device, with code in an isolated Linux VM.
PermissionsUses connected-folder rules, network egress settings, MCP permissions, and Cowork permission modes.
Deletion protectionRequires explicit permission before permanently deleting files.
Desktop dependencyLocal sessions and access to local files or apps need Desktop open and the computer awake. Cloud work can continue without the device.

This matters because Cowork can touch local files you connect, and cloud tasks process the files they open on Anthropic's servers. It can also use browser access, connected services, apps, and plugins, depending on what you enable. MCP (Model Context Protocol) is the standard some of these tools use to connect to Claude.

What Cowork can do

Current capabilities from the official docs.

CapabilityWhat it means in practice
Direct local file accessClaude can read from and write to connected local folders without manual uploads and downloads.
Sub-agent coordinationClaude can split complex work into smaller tasks and coordinate parallel workstreams.
Professional outputsClaude can generate documents, Excel spreadsheets, PowerPoint presentations, reports, and charts.
Long-running tasksCowork can work on extended tasks without the usual chat rhythm of one reply at a time.
Scheduled tasksCloud schedules can run with no device online. Work that needs local resources still depends on your computer.
ProjectsRelated tasks can live in workspaces with their own files, links, instructions, and memory.
PluginsPlugins can bundle skills, connectors, and sub-agents for specific work.
Mobile handoffCloud sessions follow your account across web, desktop, and mobile. Access to your computer still depends on Desktop.

Cowork vs Claude Chat

The separate modes that some accounts still show.

The new experience has no Chat/Cowork switch. Ask a quick question or describe a larger task in the same conversation. The comparison below applies to accounts that still have the older selector.

Older experience with separate Chat and Cowork options

AreaClaude ChatClaude Cowork
InteractionOne prompt and response at a timeMulti-step task execution
FilesManual uploads and downloadsConnected local folders
OutputsMostly answers and draftsDocuments, spreadsheets, presentations, organized files, and reports
RuntimeShorter chat turnsExtended tasks that can run while you monitor or step away
SchedulingUse Cowork for schedules in this older interfaceScheduled tasks are available
RiskLower, because it mostly repliesHigher, because it can act on files, apps, web content, and connected tools

If you still have the selector, use Chat for quick questions and Cowork for multi-step work or repeat tasks. In the new experience, Claude handles both from one conversation.

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Cowork vs Claude Code

Choosing an interface for coding or office work.

Cowork brings Claude's ability to plan and use tools to knowledge work beyond coding. Claude Code is aimed at software work. Cowork's task tools are useful when the output is a spreadsheet, deck, report, folder cleanup, or recurring research task.

AreaClaude CodeClaude Cowork
InterfaceTerminal and developer toolingClaude on web, desktop, and mobile, depending on account access
Best fitSoftware engineering workKnowledge work, files, documents, research, and office outputs
User comfortBetter for users comfortable with repos and command linesDescribe the outcome in a conversation
File workCodebase-centeredCloud files, with local folder access through Desktop
Related guideRead the Claude Code guide for coding workRead the Cowork setup guide for first-task steps

If your work is mostly code, read our Claude Code guide. If your work is a mix of documents, data, files, and research, Cowork is the more relevant starting point.

What can you do with Cowork?

Examples that match Anthropic's docs.

Use caseExample
File managementOrganize a Downloads folder by type and date, or batch rename files with a consistent pattern.
Receipts and expensesProcess receipts into a formatted expense report.
Research synthesisCombine web searches, articles, papers, and notes into a report or summary.
Transcript analysisExtract themes, decisions, and action items from meeting notes or interview transcripts.
SpreadsheetsGenerate Excel files with formulas, tabs, formatting, and charts.
PresentationsCreate slide decks from rough notes or meeting transcripts.
Data workClean, transform, analyze, and visualize datasets.
Recurring workSchedule cloud tasks without leaving a device online. Keep Desktop open for work that needs local resources.

For the exact setup flow, use our Claude Cowork setup guide.

Requirements

What you need before using Cowork.

RequirementCurrent official guidance
PlanCowork supports Pro, Max, Team, and Enterprise. The merged experience starts with Pro and Max; Team and Free will follow.
AppUse web, desktop, or mobile where your account has access. Use Desktop for local files and apps.
WindowsRequires the latest Claude for Windows app.
Web/mobileThe merged experience is rolling out on both. Separate Cowork is also in beta on these surfaces for supported accounts.
InternetYou need a connection to start or steer work; cloud tasks continue when your device goes offline.
App stateLocal sessions and access to local files or apps need Claude Desktop open.
Computer stateKeep the computer awake for local work. Cloud schedules can run with no device online.

Current limitations

What the docs still warn about.

  • The merged experience is still rolling out. Your account may still show separate Chat and Cowork options.
  • In the older Cowork experience, session sharing is not available.
  • Review your memory settings. Cloud tasks can use chat memory when it is enabled, alongside context kept in Projects.
  • Local sessions can stop if Desktop closes or the computer sleeps. Cloud sessions lose local access but can continue other work.
  • Cloud schedules do not need an online device; tasks that need local resources still do.
  • Cowork is covered by the Compliance API on eligible plans. Check the current help for coverage in separate audit logs and data exports.
  • OpenTelemetry can stream Cowork events for Team and Enterprise owners, but it does not replace audit logging.
  • Local-session history stays on the computer; Enterprise admins can retrieve it through the Compliance API, but local-session deletion endpoints are not yet available. Cloud sessions and files are saved to the member's Claude account.

Check controls before using regulated data

Confirm your plan's monitoring, retention, and export controls in Anthropic's current help before using regulated data. Compliance API coverage alone does not confirm that your organization has every record or control it needs.

Announced change for October 6, 2026

Anthropic says new Pro and Max tasks will run in the cloud from October 6, 2026, and the "Only on your computer" option will be removed. Tasks already started locally will stay on the computer. This is an upcoming change as of October 2. Local file or app access will still need Desktop open.

Safety considerations

How to think about the risk.

Cowork is useful because it can act. That is also why it needs more care than chat. Anthropic warns that Cowork has unique risks because of its agentic nature and internet access, and says prompt injection risk is not zero even with safety measures.

Start with a dedicated folder, low-risk files, and Manual permissions so you can review requests. Watch for unexpected file access, unexpected websites, unrelated requests, or task scope creep.

  • Avoid connecting folders with financial documents, credentials, personal records, legal files, or customer data.
  • Keep backups of important files before letting Cowork edit them.
  • Limit browser and web access to trusted sources.
  • Use trusted MCPs and plugins only.
  • Be careful with Claude in Chrome and computer use, especially around sensitive accounts.
  • Do not schedule tasks that send messages, make purchases, publish content, or change production systems.
  • Stop the task if Claude accesses unexpected files or websites.

You are still responsible

Anthropic says you remain responsible for actions Claude takes on your behalf, including content published, messages sent, purchases, data accessed or modified, scheduled task actions, and computer use.

Team and Enterprise notes

Admin controls, plugins, and compliance limits.

Team and Enterprise organizations still have separate Chat and Cowork options during this rollout. Owners can disable Cowork in Organization settings, and cloud sessions have a separate control. Team plans have an organization-wide toggle. Enterprise admins can use groups and custom roles for more selective enablement.

AreaOfficial note
Admin toggleOwners can enable or disable Cowork in Organization settings.
PluginsPlugins are included with Cowork and controlled by the same admin toggle.
Plugin marketplacesOwners can curate plugins as installed by default, available, required, or not available.
ProjectsAvailable to all Cowork users, with no separate org-level project creation control listed for Team plans.
MonitoringTeam and Enterprise owners can use OpenTelemetry to stream Cowork events, but it does not replace audit logging.
Compliance recordsCowork sessions are covered by the Compliance API on eligible plans. Check current help for separate audit-log and export coverage.
Device controlsMDM keys can disable local MCP servers and desktop extensions on managed devices.

That means Cowork may be fine for internal low-risk productivity work, but it needs a real rollout plan before a company points it at regulated files, customer data, or sensitive systems.

Official sources checked

The Claude and Anthropic docs used for this update.

The closest comparison is still Manus AI. For tool selection beyond Cowork, use the AI Model Picker.

Frequently asked questions

What is Claude Cowork?

Claude Cowork lets Claude carry out multi-step work and create finished files. In the new Claude experience, you describe the task in any conversation without choosing a Cowork mode. Cloud tasks keep running after you close your laptop. Local file or app access still needs Claude Desktop open and the computer awake.

Who can use Claude Cowork?

Cowork is available on Pro, Max, Team, and Enterprise plans. Anthropic announced the merged Claude experience on September 16, 2026, starting with Pro and Max. Team and Free will follow; Enterprise gets at least 30 days' notice. Accounts on the same plan can move at different times.

Is Claude Cowork available on Windows?

Yes. Anthropic's official docs say Claude Cowork is available on Claude Desktop for macOS and Claude Desktop for Windows. Windows users need the latest Claude for Windows app.

Is Claude Cowork safe for regulated workloads?

Anthropic confirms Cowork coverage in the Compliance API, a tool for retrieving activity and conversation records on eligible plans. That does not establish complete coverage in separate audit logs or bulk exports. Check the current help and your plan's controls before using regulated data.

Paras Tiwari
Written by
Paras Tiwari
Founder, Spectrum AI Labs

Founder of Spectrum AI Labs — testing AI tools and models, and writing up what actually ships.

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