Microsoft Copilot vs Perplexity: Office AI or Answer Engine in 2026
Copilot brings AI into Word, Excel and Outlook. Perplexity answers questions with sources and lets you pick the model. They solve different problems.
By , research by the BestBots team · Updated Oct 18, 2026
Fact checked against each company's published pricing, documentation and verified user ratings. How we score
Pick Microsoft Copilot if you want AI inside the files and inbox you work in every day: Microsoft 365 Premium at $19.99 puts it in Word, Excel, PowerPoint, Outlook and Teams, with Office and storage included. Pick Perplexity if you want sourced answers and premium research data: Pro is $17 per month billed annually with citations on every answer.
Side by side
| Spec | Microsoft Copilot | Perplexity |
|---|---|---|
| BestBots Score | 4.4 | 4.3 |
| Starting price | $9.99 per month | $17 per month billed annually |
| Pricing model | per seat | per seat |
| Free trial | 1 month (Microsoft 365 Personal and Premium) | None listed |
| Free plan | Yes, the Copilot app | Yes, cited search with basic models |
| Paid from | $9.99 per month (Microsoft 365 Personal) | $17 per month billed annually (Pro) |
| Top model on paid plan | Latest OpenAI models (GPT-5.X) listed on business plans | Model choice incl. GPT-6.1 Sol, Claude Sonnet 5.5, Gemini 3.8 Flash, Grok 4.7 |
| Image generation | Yes, higher usage on Personal, extensive on Premium | Asset generation on Pro; video generation on Max |
The short answer
- Choose Copilot for drafting in Word, analyzing in Excel, building decks and catching up on email and meetings.
- Choose Perplexity for fact finding, market and company research and answers you need to cite.
- Microsoft 365 users can keep both: Copilot for documents and Perplexity's free plan for lookups.
Pricing
| Tier | Microsoft Copilot | Perplexity |
|---|---|---|
| Free | Copilot app, base usage | $0, cited search, basic models |
| Entry | Microsoft 365 Personal, $9.99 per month or $99.99 per year | None |
| Standard | Microsoft 365 Premium, $19.99 per month or $199.99 per year | Pro, $17 per month billed annually |
| Power | Microsoft 365 Pro, $99.99 per month, monthly only | Max, $167 per month billed annually |
| Business | Copilot Business add-on, $21 annually ($18 promo) or $25.20 monthly | Enterprise Pro, $34 per seat billed annually |
| Bundled business | Business Standard with Copilot $23.50; Business Premium with Copilot $32 | Enterprise Max, $271 per seat billed annually |
On the standard tier, a year costs $199.99 for Microsoft 365 Premium on annual billing and about $204 for Perplexity Pro. Microsoft's price also covers Office apps and 2 TB of shared storage, so if you would buy Office anyway, Copilot is the cheaper AI.
For businesses, Copilot's add-on requires an existing qualifying Microsoft 365 Business license, and the $18 promo applies to the first year only. Perplexity Enterprise Pro needs no other license and includes 500 Computer credits per seat.
Plan details: Microsoft Copilot pricing and Perplexity pricing.
Models and features
Microsoft lists the latest OpenAI models (GPT-5.X) with priority access on its business plans. Perplexity Pro lets you choose models per query from OpenAI, Google Gemini, Anthropic Claude and NVIDIA Nemotron.
| Feature | Microsoft Copilot | Perplexity |
|---|---|---|
| Inside Office apps | Word, Excel, PowerPoint, Outlook, Teams | No |
| Inline citations | When it searches | Every answer, every plan |
| Research agent | Researcher on Premium and business | Deep Research on Pro and Max |
| Data analysis | Analyst on Premium and business | File uploads (10x on Pro) |
| Premium data | Your Microsoft 365 work data (business) | PitchBook, Statista, S&P Capital IQ on Pro |
| Model choice | Model choice on Copilot Business | Several labs' models on Pro |
| Image generation | Higher on Personal, extensive on Premium | Asset generation on Pro |
| Video generation | Not listed | On Max |
| Agent | Cowork on Premium, limited agentic AI | Computer on Pro and Max |
| Storage | 1 TB to 5 TB | Not included |
| Usage limits | Higher, extensive, highest | Credits and plan limits |
Head to head scenarios
Turning meeting notes into a Word report
Winner: Copilot. It works in Word and Teams with your own files and meetings. Perplexity would need you to paste everything in.
Researching a competitor or market
Winner: Perplexity. Cited answers, Deep Research and PitchBook, Statista and S&P Capital IQ data on Pro cover outside research better than Copilot's web search.
Spreadsheet analysis
Winner: Copilot. Analyst and in-app Copilot work inside Excel. Perplexity can analyze an uploaded file, but it does not edit your workbook.
Fact checking before you publish
Winner: Perplexity. Every answer carries numbered sources you can open, which is the fastest way to confirm a claim.
A company standardizing on one AI tool
Winner: Copilot, if the company runs on Microsoft 365. The add-on reaches email, files and meetings with Enterprise Data Protection and admin analytics, and costs $13 less per seat than Perplexity Enterprise Pro on annual billing.
Privacy
Microsoft states that prompts, responses and file contents in Microsoft 365 apps for home are not used to train foundation models, and you can turn off connected experiences to disable Copilot in the apps. Business plans add Enterprise Data Protection.
Perplexity's privacy notice says it processes prompts, queries and uploads to provide the service and understand preferences, and states it does not use email content to train models. Enterprise Pro lists no training on data, SSO, SOC 2 Type II, HIPAA and PCI DSS; Enterprise Max adds SCIM, audit logs and retention settings.
Verdict
Microsoft Copilot is the better buy for anyone who lives in Office, since the AI comes inside the apps and the price covers Office too. Perplexity is the better research tool, with citations, premium data and model choice. For most Microsoft 365 users, the right setup is Copilot for documents plus Perplexity Free for quick sourced answers, upgrading to Pro only if research is a daily job.
Read the Microsoft Copilot review and Perplexity review.
Frequently asked questions
Is Perplexity better than Copilot?
For research with clickable sources and premium data, yes. For work inside Word, Excel, PowerPoint, Outlook and Teams, Copilot is better because it runs in those apps. They overlap less than people expect: Copilot is an office assistant, Perplexity is a research engine.
Copilot Researcher or Perplexity Deep Research?
Copilot's Researcher on Microsoft 365 Premium and business plans can draw on your work data in Microsoft 365. Perplexity's Deep Research draws on the web plus premium sources like PitchBook and Statista. Pick Researcher for internal questions, Perplexity for outside market and company research.
Which is cheaper?
Perplexity Pro is $17 per month on annual billing, about $204 per year. Microsoft 365 Premium is $199.99 per year or $19.99 monthly, and includes Office apps and storage. Microsoft 365 Personal at $9.99 per month is the cheapest way to get Copilot inside Office.
Which is better for a company?
Companies on Microsoft 365 get more from the Copilot Business add-on, since it reaches email, files, meetings and chats with Enterprise Data Protection. Teams that mostly do outside research may prefer Perplexity Enterprise Pro, which lists SOC 2 Type II, HIPAA and no training on data.
Does Perplexity work with Microsoft 365?
Perplexity Pro lists 400+ app connectors, but it does not run inside Word or Excel the way Copilot does. Copilot is the tool for in-document help.
Which free plan is better?
The free Copilot app gives chat with base usage and image creation. Perplexity Free gives cited search with basic models and limited usage. For quick sourced answers pick Perplexity Free; for general chat and images, Copilot's free app.