Grok vs Microsoft Copilot

Detailed comparison of Grok and Microsoft Copilot. See which tool is best for your specific needs.

Grok logo
Grok

xAI's assistant with real-time X data and cheap output tokens

Starting atFree
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Microsoft Copilot logo
Microsoft Copilot

OpenAI models embedded across Microsoft 365 and Windows

Starting atFree
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FeatureGrokMicrosoft Copilot
Starting PriceFreeFree
Free Tier
Context Window500K tokensVaries by surface
Vision Input
Reasoning Mode
Open Weights
Web Search
API Access
API Access
Top Pros
  • Cheapest output tokens of the closed flagships on Grok 4.3 at $2.50 / 1M
  • Real-time access to X data, which no competitor offers
  • Grok 4.3 pairs 1M context with value pricing
  • Native integration across Word, Excel, Outlook, Teams and Windows
  • Enterprise administration, compliance and tenant data boundaries
  • Included in some existing Microsoft 365 agreements
Main Cons
  • Flagship 4.6 context is only 500K, below every major competitor
  • Prompts past 200K bill the entire request at double rate
  • Smaller enterprise and compliance track record
  • $30/user/month on top of an existing Microsoft 365 licence
  • No direct API — you cannot build on it the way you can on OpenAI or Anthropic
  • Model access lags the underlying OpenAI releases
Best For
real time datacost sensitiveagentscoding
enterprisemicrosoft 365productivityteams

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