Criterion GrokMicrosoft Copilot
CategoryAI Chatbots & AssistantsAI Chatbots & Assistants
In one sentencexAI's chatbot with voice, image and video generation, now sold through The X Subscription bundle with Cursor and X Premium.Microsoft's AI assistant, free on its own and built into Word, Excel, PowerPoint and Outlook through Microsoft 365 plans.
Problem it solvesOffers a chat assistant with media generation and coding usage in one subscription for X and Cursor users.Brings AI help into the Office apps people already use for documents, spreadsheets, slides and email.
Free planYesYes
Developer APIYes — docsNo
Open sourceNoNo
PlatformsWeb, iOS, Android, XWeb, Windows, iOS, Android, Microsoft 365 apps
Pricing (summary)The X Subscription has a free tier plus Plus ($8/month), Premium ($30/month), Super ($100/month) and Ultra ($200/month), with roughly 17% lower per-month prices on annual billing. Team seats cost the same as the matching individual tier.
Checked 2026-10-19		The Copilot app is free with limited usage. Microsoft 365 Personal ($9.99/month), Family ($12.99/month) and Premium ($19.99/month) add Copilot in Office apps. Businesses can buy bundles with Copilot or a Copilot Business add-on per user.
Checked 2026-10-19
Strengths
  • Bundles several products in one price
  • Annual discounts published
  • Large API context windows
  • Deep Office integration
  • Bundles storage and Office apps
  • Business add-on priced per user
Limitations
  • Plan names changed in October 2026, so older guides are outdated
  • Grok 4.7 not yet in consumer apps per its model card
  • Third-party Cursor models use credits from first use
  • Models used per plan are not named on pricing pages
  • Family plan AI features are owner-only
  • No AI features in Microsoft 365 Basic