Criterion Google Gemini Grok
CategoryAI Chatbots & AssistantsAI Chatbots & Assistants
In one sentenceGoogle's AI assistant, bundled with Google One storage and Workspace apps on paid Google AI plans.xAI's chatbot with voice, image and video generation, now sold through The X Subscription bundle with Cursor and X Premium.
Problem it solvesPuts an AI assistant inside the Google apps people already use, with options for image and video creation.Offers a chat assistant with media generation and coding usage in one subscription for X and Cursor users.
Free planYesYes
Developer APIYes — docsYes — docs
Open sourceNoNo
PlatformsWeb, Android, iOS, Gmail/Docs/Vids (paid)Web, iOS, Android, X
Pricing (summary)Gemini is free with a Google Account. Google AI Plus is $4.99/month, AI Pro $19.99/month and AI Ultra starts at $99.99/month (with a $199.99 tier). Gemini Enterprise for businesses is $21 or $30 per seat per month.
Checked 2026-10-19
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
Strengths
  • Strong free tier
  • Storage bundled with paid plans
  • Free API tier for Flash models
  • Bundles several products in one price
  • Annual discounts published
  • Large API context windows
Limitations
  • Free plan uses the Flash-Lite model
  • Annual prices not shown on the subscriptions page
  • Some features limited to select countries
  • Plan names changed in October 2026, so older guides are outdated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