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Grok vs Microsoft 365 Copilot: Complete Comparison 2026

Choosing between Grok and Microsoft 365 Copilot? We compare both tools across features, pricing, pros and cons to help you decide which is the better fit in 2026.

Grok8.4

xAI · Chatbots & LLMs, Writing

Grok is xAI's assistant, tightly integrated with the X platform and trained with a distinctively candid, witty persona. It has real-time access to X posts, giving it an edge on breaking news and live sentiment. Grok offers strong reasoning, image generation and a less filtered conversational style than most competitors.

Microsoft 365 Copilot8.3

Microsoft · Productivity, Writing

Microsoft 365 Copilot embeds AI across Word, Excel, PowerPoint, Outlook and Teams to draft, analyse and summarise using your work data. It's the default AI layer for Microsoft-centric enterprises.

Key differences at a glance

  • •Grok scores higher overall (8.4 vs 8.3).
  • •Grok has a free tier; Microsoft 365 Copilot does not.
  • •Grok leans on live social-media awareness.
  • •Microsoft 365 Copilot leans on deep office integration.

Side-by-side comparison

FeatureGrokxAIMicrosoft 365 CopilotMicrosoft
Quality score8.4 / 108.3 / 10
Starting price$8/mo$30/mo
Free tierYes — Free tier availableNo
API input price$1.25 / 1M tokens—
API output price$2.5 / 1M tokens—
SpeedFast—
Context window128K tokens—
CategoriesChatbots & LLMs, WritingProductivity, Writing
Key features
  • Real-time access to X / Twitter data
  • Image generation built in
  • Less restrictive content policy
  • Reasoning ('Think') mode
  • Drafting in Word and Outlook
  • Excel analysis and formulas
  • PowerPoint generation
  • Teams meeting recaps
Pros
  • + Live social-media awareness
  • + Personable, humorous tone
  • + Bundled with X Premium
  • + Deep Office integration
  • + Works on your real data
  • + Enterprise security
Cons
  • − Tied to the X ecosystem
  • − Quality varies versus frontier rivals
  • − Premium per-seat price
  • − Requires M365 ecosystem

Grok

Choose Grok if you want live social-media awareness and a free tier to start.

Microsoft 365 Copilot

Choose Microsoft 365 Copilot if you want deep office integration.

Pricing comparison

Grok
$8/mo
API: $1.25 in / $2.5 out per 1M tokens
Microsoft 365 Copilot
$30/mo
查看即時 API 價格數據 → llmprice.app

The verdict

Overall, Grok edges ahead with a quality score of 8.4 versus 8.3 for Microsoft 365 Copilot. Choose Grok if you want live social-media awareness. That said, Microsoft 365 Copilot is the better pick when deep office integration matters most — so the right answer depends on your priorities and budget.

Try Grok →Try Microsoft 365 Copilot →

Frequently asked questions

Q. Which is better, Grok or Microsoft 365 Copilot?

On our scoring, Grok edges ahead (8.4/10), but the right pick depends on your priorities and budget — see the breakdown above.

Q. Is Grok or Microsoft 365 Copilot cheaper?

Grok has a free tier, so it's cheaper to start. Microsoft 365 Copilot begins at $30/mo.

Q. Can I use Grok and Microsoft 365 Copilot together?

Yes — many teams use more than one AI tool, picking Grok for some tasks and Microsoft 365 Copilot for others where it's stronger.