AI Share LabAI SHARE / USAGE / TREND
AI SHARE / USAGE

AI share & usage rankings and history

We track AI chatbot market share and usage across the world and Japan. Monthly trend charts, month-over-month change and the competitive landscape reveal AI popularity trends and the fastest-rising AIs.

A. AI share highlights for Oct 2026
Worldwide, ChatGPT leads at about 68.4%, followed by Google Gemini and Perplexity.In Japan, ChatGPT (about 49.6%) is #1, while Google Gemini holds about 32.8% — a higher share than worldwide.
AI usage by country

Explore AI share by country & region

🌍 AI market share by country🌐 AI share in Worldwide🇯🇵 AI share in Japan🇺🇸 AI share in United States🇬🇧 AI share in United Kingdom🇩🇪 AI share in Germany🇰🇷 AI share in South Korea🇮🇳 AI share in India
Worldwide

Worldwide AI share ranking (Oct 2026)

#AI toolWorldwide shareShare ratioMoMTrend
1ChatGPT
OpenAI		68.38%—
2Google Gemini
Google		18.52%—
3Perplexity
Perplexity AI		9.55%—
4Microsoft Copilot
Microsoft		2.05%—
5Claude
Anthropic		1.46%—
6DeepSeek
DeepSeek		0.04%—

Worldwide share history (monthly)

0255075100NovDecJanFebMarAprMayJunJulAugSepOct68.38%18.52%1.46%9.55%2.05%
ChatGPTGoogle GeminiClaudePerplexityMicrosoft Copilot

Source: StatCounter Global Stats (AI Chatbot Market Share, Desktop & Mobile / Worldwide) ／ 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.

Japan

AI share ranking in Japan (Oct 2026)

#AI toolJapan shareShare ratioMoMTrend
1ChatGPT
OpenAI		49.65%—
2Google Gemini
Google		32.78%—
3Microsoft Copilot
Microsoft		10.71%—
4Perplexity
Perplexity AI		5.32%—
5Claude
Anthropic		1.47%—
6DeepSeek
DeepSeek		0.07%—

Japan share history (monthly)

0255075100NovDecJanFebMarAprMayJunJulAugSepOct49.65%32.78%1.47%5.32%10.71%
ChatGPTGoogle GeminiClaudePerplexityMicrosoft Copilot

Source: StatCounter Global Stats (AI Chatbot Market Share, Desktop & Mobile / Japan) ／ 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.

Monthly reports

Past monthly AI share reports

Oct 2026Sep 2026Aug 2026Jul 2026Jun 2026May 2026Apr 2026Mar 2026Feb 2026Jan 2026Dec 2025Nov 2025

Frequently asked questions

Does AI share differ between the world and Japan?
Yes. In market share for Oct 2026, ChatGPT stands out worldwide at about 68%, while in Japan Gemini holds a higher share than the world average, reaching double digits (source: StatCounter).
How often is the AI share data updated?
Every month we save StatCounter's public data as a monthly snapshot and update the history, month-over-month change and fastest risers/fallers. Each month's report is kept as an archive.
Are “market share” and “usage” the same?
Not exactly. Here, market share is a metric based on web-referral traffic via AI chatbots and does not fully represent usage across all users. Rankings change with the measurement method.

Related pages

AI market share by country→AI landscape map (positioning)→AI share forecast (next month, model-predicted)→AI popularity ranking (popularity score)→Compare AI tools (vs)→AI pricing comparison→

⚠ 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.