Anthropic's AI assistant for writing, analysis, coding and multi-step work, with free and paid plans.
Free stops at: Usage limits apply, Projects: up to 5
Free · paid from $20/mo US · checked Sep 30
Head-to-head · profiles checked Oct 1, 2026
Pick Claude for a standalone assistant with long-document handling and published privacy terms, and Microsoft Copilot if your work is already inside Microsoft 365. Both start free. Claude Pro is $20/mo; Copilot's paid route is Microsoft 365 Personal at $9.99/mo with Office apps included. Copilot's data and limits terms were not stated on the pages we checked.
We based this comparison on our Claude profile verified 2026-09-30 and our Microsoft Copilot profile verified 2026-10-01, both built from official vendor pages; it uses no third-party benchmarks and no vendor paid for placement.
Claude is the better-documented choice if you want one assistant for long documents, writing, research and code: its Free plan includes web search, file creation and artifacts, Pro is $20/mo, and its privacy and team controls are published. Microsoft Copilot is the natural pick if you already live in Word, Excel, PowerPoint, Outlook and Teams, since it works inside those apps and starts free. Copilot's free-tier limits, training use, retention and API terms were not stated on the pages we checked, so a full privacy and limits comparison is not possible. Copilot also lists Anthropic models among its choices, so the two overlap more than the names suggest.
Based on our Claude profile verified 2026-09-30 and Microsoft Copilot profile verified 2026-10-01; Copilot's pages gave no data on free limits, training or retention, and no benchmark was run.
If you only want the answer, this is the table. Everything below is the evidence from the two documented profiles.
| You want to | Use | Why |
|---|---|---|
| Chat about everyday questions for free | Either | Both have a free tier; Claude includes web search and artifacts, Copilot needs a Microsoft account for uploads and memory |
| Summarize a long contract or report | Claude | Claude takes PDFs up to 1000 pages and 500 MB per file; Copilot's upload limits are not stated |
| Draft inside Word or PowerPoint | Microsoft Copilot | Copilot works inside Word, Excel, PowerPoint, Outlook and Teams with an eligible Microsoft 365 plan |
| Summarize email and meetings in Outlook and Teams | Microsoft Copilot | Copilot lists Outlook and Teams integration; Claude offers a Microsoft 365 connector on Pro and above |
| Create documents, sheets and decks from a chat prompt | Claude | Claude creates files, slides and docs from a prompt on Pro and above; Copilot's file creation is not stated |
| Generate images | Microsoft Copilot | Copilot lists image creation; Claude does not generate photos or illustrations |
| Write or debug code | Claude | Claude Pro includes Claude Code; Copilot's coding features are not stated on the pages we checked |
| Choose between OpenAI and Anthropic models | Microsoft Copilot | Copilot lists both families in one app; Claude offers only Anthropic models |
| Build an app on a model API | Claude | Claude Platform is a pay-per-token API; Copilot's API availability is not stated |
| Roll out to a company with SSO and audit logs | Claude | Claude Team and Enterprise list SSO, SCIM and audit logs; Copilot business controls were not stated |
| Plan | Tool | Price | Limits |
|---|---|---|---|
| Claude Free | Claude | $0 | Usage limits apply; up to 5 projects; no Claude Code or Research |
| Claude Pro | Claude | $20/mo ($17/mo billed annually, $200/yr) | More usage than Free; includes Claude Code and Research |
| Claude Max 5x | Claude | $100/mo | 5x more usage than Pro; monthly billing only |
| Claude Max 20x | Claude | $200/mo | 20x more usage than Pro; monthly billing only |
| Claude Team standard seat | Claude | $25/seat/mo ($20 annual) | 2-150 users; SSO and admin controls |
| Claude Team premium seat | Claude | $125/seat/mo ($100 annual) | 5x more usage than standard seats |
| Claude Enterprise | Claude | $20/seat/mo billed annually, plus usage at API rates | Annual billing; SCIM, audit logs, custom retention |
| Claude API (Claude Platform) | Claude | Per 1M tokens, by model | Billed separately from chat plans |
| Copilot (free) | Microsoft Copilot | $0 | Some capabilities subject to usage limits |
| Microsoft 365 Personal | Microsoft Copilot | $9.99/mo or $99.99/yr | 1 person, 5 devices, 1 TB storage |
| Microsoft 365 Family | Microsoft Copilot | $12.99/mo or $129.99/yr | 1-6 people, but AI is for the subscription owner only |
| Microsoft 365 Premium | Microsoft Copilot | $19.99/mo or $199.99/yr | Extensive chat, image and audio usage; limited agentic AI usage |
| Microsoft 365 Pro | Microsoft Copilot | $99.99/mo | Monthly billing only; highest usage limits |
USD as published on each vendor's pricing page, checked Oct 1, 2026. Claude pricing in full · Microsoft Copilot pricing in full
| Claude | Microsoft Copilot | |
|---|---|---|
| Messages / rate limits | Usage limits on every plan; session limits reset every five hours; exact quotas not stated | Free-tier limits not quantified; higher usage needs a paid Microsoft 365 plan |
| Context / file size | 500 MB per file, 20 files per chat, PDFs up to 1000 pages; up to 1M-token context on newest models (paid plans) | Not stated |
| Seats / team | Team is 2-150 users; Enterprise via annual plan | Family covers 1-6 people, but AI is for the subscription owner only |
| Feature | Claude | Microsoft Copilot |
|---|---|---|
| Image generation | No | Yes (image creation listed) |
| Voice | Yes | Yes when signed in |
| File upload | Yes | Yes when signed in |
| Web search | Yes, all plans | Search listed; details not stated |
| Reasoning mode | Yes (extended thinking) | Not stated |
| Agents / tools | Claude Code, Cowork, connectors (MCP) | Researcher and Analyst on Premium and Pro; limited agentic AI usage |
| API | Yes, separate product billed per token | Not stated |
| Mobile apps | Yes (iOS, Android) | Yes (iOS, Android) |
| Claude | Microsoft Copilot | |
|---|---|---|
| Training on your data | Consumer plans may be used unless you opt out; Team and Enterprise not by default | Not stated |
| Retention | Deleted chats removed from the back-end within 30 days; incognito chats kept 30 days by default | Not stated |
| Business controls | SSO, SCIM, audit logs, Compliance API, custom retention, HIPAA-ready | Not stated |
Taken from each vendor's published policy pages at the time of our check. Policies change; the source links are at the bottom.
Anthropic's AI assistant for writing, analysis, coding and multi-step work, with free and paid plans.
Free stops at: Usage limits apply, Projects: up to 5
Free · paid from $20/mo US · checked Sep 30
Microsoft's AI assistant app on web, Windows, Mac, iOS and Android, connected to Word, Excel, PowerPoint, Outlook and Teams.
Free stops at: Some capabilities subject to usage limits
Verified copilot.microsoft.com (opens Microsoft Copilot website in a new tab)
Free · paid from $9.99/mo US · checked Sep 29
Both have a free tier. Copilot's cheapest paid route is Microsoft 365 Personal at $9.99/mo, which also includes Office apps and 1 TB of storage. Claude Pro is $20/mo, or $17/mo billed annually. The plans bundle different things, so the gap is not like for like.
Yes, with a signed-in Microsoft account, though file uploads, unlimited voice and memory need sign-in and some capabilities have usage limits that Microsoft does not quantify. Claude also has a Free plan with usage limits, including web search and file creation.
Copilot lists a choice of OpenAI and Anthropic models. The pages we checked do not say which Claude models are offered or what limits apply, so we cannot say how it compares with using Claude directly.
Claude consumer plans (Free, Pro, Max) may use chats for training unless you opt out; Team and Enterprise do not by default. For Copilot, training use and retention were not stated on the pages we checked, so read Microsoft's privacy terms before sharing sensitive data.
Claude has a separate Claude Platform API billed per token, not included in chat subscriptions. Copilot's API availability was not stated on the pages we checked.
Only official vendor pages. No third-party benchmarks, forum threads or press were used. How we review.
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