AI SHARE · United States

AI usage & share ranking in the United States

AI chatbot market share and usage in this region, plus monthly history. Compare the popularity of ChatGPT, Gemini, Claude and more in the United States with data.

A. Which AI has high usage in the United States? (Oct 2026)
#1 is ChatGPT (about 50.0%), followed by Google Gemini and Microsoft Copilot.The recent fastest riser is ChatGPT (+2.62pt).
🌐 Worldwide🇯🇵 Japan🇺🇸 United States🇬🇧 United Kingdom🇩🇪 Germany🇰🇷 South Korea🇮🇳 India

AI share ranking in the United States (Oct 2026)

#AI toolUnited States shareShare ratioMoMTrend
1ChatGPT
OpenAI
50.01%—
2Google Gemini
Google
26.61%—
3Microsoft Copilot
Microsoft
11.88%—
4Perplexity
Perplexity AI
7.36%—
5Claude
Anthropic
4.00%—
6DeepSeek
DeepSeek
0.15%—

Share history in the United States (monthly)

020406080NovDecJanFebMarAprMayJunJulAugSepOct50.01%26.61%4%7.36%11.88%
ChatGPTGoogle GeminiClaudePerplexityMicrosoft Copilot

Source: StatCounter Global Stats (AI Chatbot Market Share, Desktop & Mobile / United States) / Captured: 2026-10 (provisional) / reference value
The current month is a provisional, month-to-date figure. Month-over-month change and risers/fallers are based on the latest completed month.

DEEP DIVE

AI share breakdown for the United States (Sep 2026)

A breakdown of the AI share in the United States by market concentration, 3-month momentum and rank changes. Every figure is derived from StatCounter's monthly data.

74.9%Leader's share
95.0%Top 3 combined
+3.13ptTop 3 combined·vs last month

Month-over-month basis: Sep 2026 (completed month)

Change over 3 months

AINow3 months agoChange
ChatGPT74.9%66.2%+8.69pt
Google Gemini13.4%10.5%+2.93pt
DeepSeek0.1%0.1%-0.06pt
Perplexity3.1%4.9%-1.79pt
Microsoft Copilot6.7%11.3%-4.64pt
Claude1.9%7.0%-5.11pt

Rank changes vs last month

Claude: #4 → #5Perplexity: #5 → #4

Gap vs the world (United States − World)

AIUnited StatesWorldGap
ChatGPT74.9%80.5%-5.61pt
Microsoft Copilot6.7%1.8%+4.91pt
Perplexity3.1%5.8%-2.75pt
Google Gemini13.4%10.9%+2.48pt
Claude1.9%0.9%+0.90pt
DeepSeek0.1%0.0%+0.07pt

A positive value means the AI is stronger in the United States than the world average.

Monthly reports

Past monthly share (United States)

Frequently asked questions

Which AI is most used in the United States?
In the United States's AI chatbot market share for Oct 2026, ChatGPT is #1 at about 50.0% (StatCounter, reference value).
Which AI is growing in the United States?
Recently, ChatGPT has grown by MoM +2.62pt.
Is this share the same as worldwide?
No. AI usage and share vary widely by country and region. You can compare them using each region's monthly data.

AI share in other countries & regions

⚠ These rankings are reference values based on public market-share data, web-traffic estimates and editorial research, and do not represent a complete count of every user of each AI tool. Rankings change with the measurement method (web-visit share vs. market share, etc.). Always check each official site for the latest information.