Market Share · ChatGPT Market Share: Global Position
Worldwide AI chatbot web-visit share, April 2026
CHART 1 · WORLDWIDE STANDING
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AI Behavior Index
Market Share · ChatGPT Custom GPTs Marketplace
Custom GPTs created vs publicly listed
Chart 1 · Catalog size
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Source: OpenAI (via Wikipedia)
AI Behavior Index
Market Share · ChatGPT in the U.S. vs Internationally
ChatGPT web-visit share: US vs worldwide
CHART 1 · WHERE THE LEAD IS BIGGEST
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AI Behavior Index
Market Share · ChatGPT MAU Growth Trajectory, 2022–2026
ChatGPT weekly active users, Nov 2023 – Feb 2026
Chart 1 · The headline trajectory
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AI Behavior Index
Market Share · ChatGPT Mobile App Adoption
Mobile monthly active users, Aug 2023 – Apr 2026
Chart 1 · Active users
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AI Behavior Index
Market Share · ChatGPT Voice Mode Adoption
Advanced Voice Mode: from demo to free tier
Chart 1 · The rollout
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Source: TechCrunch
AI Behavior Index
Market Share · ChatGPT vs Bing Chat: What Happened
Two trajectories after the same AI launch
Chart 1 · The divergence
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AI Behavior Index
Market Share · ChatGPT Plus and Pro: Paid Subscriber Trends
Total paying subscribers, all tiers
Chart 1 · The paid base
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AI Behavior Index
Market Share · OpenAI Enterprise: Adoption in Fortune 500
Share of Fortune 500 using ChatGPT
Chart 1 · Penetration over time
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AI Behavior Index
Market Share · ChatGPT Search Feature Adoption
Global digital query share: Google vs ChatGPT
Chart 1 · The big picture
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Source: First Page Sage, Q2 2026
AI Behavior Index
Market Share · ChatGPT Market Share: Global Position
ChatGPT vs Gemini vs Claude, share over time
CHART 2 · THE 15-MONTH SHIFT
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AI Behavior Index
Market Share · ChatGPT in the U.S. vs Internationally
US share of ChatGPT's user base over time
Chart 2 · The US is shrinking as a share
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Source: Presenc AI
AI Behavior Index