Microsoft 365 Copilot vs Grok
Microsoft 365 Copilot and Grok sit in the same category. The verdict below is calculated for each role from the tasks, the role fit and the price.
Short answer
Microsoft 365 Copilot wins for 17 of 20 roles in our data. Grok starts at $8/mo and Microsoft 365 Copilot at $20/mo on the cheapest paid plan.
Verdict by role
| Role | Better choice | Why |
|---|---|---|
| Accountant | Microsoft 365 Copilot | covers 4 tasks relevant to this role against 0; built for this role |
| Lawyer | Microsoft 365 Copilot | covers 3 tasks relevant to this role against 0; built for this role |
| HR manager | Microsoft 365 Copilot | covers 4 tasks relevant to this role against 0; built for this role |
| Finance manager | Microsoft 365 Copilot | covers 5 tasks relevant to this role against 0; built for this role |
| Manager | Microsoft 365 Copilot | covers 6 tasks relevant to this role against 3; part of the role's core toolkit |
| Marketer | Grok | cheaper entry plan |
| Sales manager | Either one | even on tasks, Grok is cheaper to start |
| Data analyst | Microsoft 365 Copilot | covers 5 tasks relevant to this role against 2; built for this role |
| Teacher | Microsoft 365 Copilot | covers 6 tasks relevant to this role against 3 |
| Executive assistant | Microsoft 365 Copilot | covers 6 tasks relevant to this role against 3; part of the role's core toolkit |
| Logistics manager | Microsoft 365 Copilot | covers 6 tasks relevant to this role against 3 |
| Procurement manager | Microsoft 365 Copilot | covers 5 tasks relevant to this role against 1; built for this role |
| Secretary | Microsoft 365 Copilot | covers 6 tasks relevant to this role against 3 |
| Recruiter | Microsoft 365 Copilot | covers 4 tasks relevant to this role against 0; built for this role |
| HR administrator | Microsoft 365 Copilot | covers 4 tasks relevant to this role against 0; built for this role |
| Tax consultant | Microsoft 365 Copilot | covers 4 tasks relevant to this role against 0; built for this role |
| Auditor | Microsoft 365 Copilot | covers 4 tasks relevant to this role against 0; built for this role |
| Economist | Microsoft 365 Copilot | covers 5 tasks relevant to this role against 0; built for this role |
| Project manager | Microsoft 365 Copilot | covers 6 tasks relevant to this role against 3 |
| Social media manager | Grok | cheaper entry plan |
Side by side
| Microsoft 365 Copilot | Grok | |
|---|---|---|
| Vendor | Microsoft | xAI |
| Category | Chat assistants | Chat assistants |
| Free plan | Yes: Free Copilot in the browser and the Microsoft Copilot app, with no access to company files, no work inside Word and Excel, and limited strong models at peak hours | Yes: A limited number of messages every few hours, limited reasoning and DeepSearch, image generation with a small quota |
| Cheapest paid plan | Copilot Pro, $20/mo | X Premium, $8/mo |
| Top plan | Microsoft 365 Copilot, $30/mo | SuperGrok Heavy, $300/mo |
| Tasks covered | 6 | 3 |
Microsoft 365 Copilot: Assistant inside Word, Excel, Outlook, Teams and PowerPoint with access to company data.
Grok: xAI chat with real-time access to the X feed, for mention monitoring and quick reviews.
Only Microsoft 365 Copilot covers
- Build a quarterly results presentation
- Write meeting minutes from an audio recording
- Write a business letter
- Write a weekly report to your manager
- Analyze budget variances, actual versus plan
- Find a document in your drive by its content
Only Grok covers
- Build a competitor price review
- Analyze customer reviews by topic
- Write a series of company social media posts
Pitfalls to watch at work
Microsoft 365 Copilot
- Copilot sees everything your account can access, including folders colleagues shared by mistake: review SharePoint and OneDrive permissions before rollout
- A Teams meeting summary is built from the transcript and may credit a decision to the wrong person: check it against the recording before sending
- Free Copilot in the browser and business Copilot in Word are different products with different data protection: work documents go only into the business version
Grok
- The default model has fewer guardrails on style and claims: proofread client-facing text more carefully than after other chats
- In X settings, turn off permission for Grok to train on your posts and conversations, which is on by default
- X data is people's posts rather than facts: check a quote from the feed in the primary source before it goes into a report
FAQ
Is Microsoft 365 Copilot or Grok better for work?
In our data Microsoft 365 Copilot is the better choice for 17 of 20 roles. The table above shows the reason for each role.
Which is cheaper, Microsoft 365 Copilot or Grok?
Grok starts at $8/mo and Microsoft 365 Copilot at $20/mo on the cheapest paid plan.
Do Microsoft 365 Copilot and Grok have free plans?
Microsoft 365 Copilot: Yes. Free Copilot in the browser and the Microsoft Copilot app, with no access to company files, no work inside Word and Excel, and limited strong models at peak hours. Grok: Yes. A limited number of messages every few hours, limited reasoning and DeepSearch, image generation with a small quota.
Compare Microsoft 365 Copilot with
- Microsoft 365 Copilot vs ChatGPT
- Microsoft 365 Copilot vs Copilot in Word
- Microsoft 365 Copilot vs Gemini in Google Docs
- Microsoft 365 Copilot vs Claude
- Microsoft 365 Copilot vs Notion AI
Compare Grok with
Alternatives to Microsoft 365 Copilot · Alternatives to Grok · Microsoft 365 Copilot pricing · Grok pricing
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