Oct 2026 AI share ranking
A monthly report of AI chatbot market share and usage worldwide and in Japan as of Oct 2026, with month-over-month change and fastest risers/fallers.
Worldwide share (Oct 2026)
| # | AI tool | Worldwide share | Share ratio | MoM | Trend |
|---|---|---|---|---|---|
| 1 | ChatGPT OpenAI | 68.38% | — | ||
| 2 | Google Gemini | 18.52% | — | ||
| 3 | Perplexity Perplexity AI | 9.55% | — | ||
| 4 | Microsoft Copilot Microsoft | 2.05% | — | ||
| 5 | Claude Anthropic | 1.46% | — | ||
| 6 | DeepSeek DeepSeek | 0.04% | — |
Worldwide share history through Oct 2026
Japan share (Oct 2026)
| # | AI tool | Japan share | Share ratio | MoM |
|---|---|---|---|---|
| 1 | ChatGPT OpenAI | 49.65% | — | |
| 2 | Google Gemini | 32.78% | — | |
| 3 | Microsoft Copilot Microsoft | 10.71% | — | |
| 4 | Perplexity Perplexity AI | 5.32% | — | |
| 5 | Claude Anthropic | 1.47% | — | |
| 6 | DeepSeek DeepSeek | 0.07% | — |
Source: StatCounter Global Stats (AI Chatbot Market Share) ／ 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.
#1 and #2 by region in Oct 2026
The leading and second AI in each major region other than the world and Japan that month, and the share gap between them.
| Region | #1 | #2 | Gap #1–#2 |
|---|---|---|---|
| United States | ChatGPT 50.0% | Google Gemini 26.6% | 23.4 pt |
| United Kingdom | ChatGPT 59.0% | Google Gemini 20.6% | 38.4 pt |
| Germany | ChatGPT 59.3% | Google Gemini 23.6% | 35.6 pt |
| South Korea | Google Gemini 52.7% | ChatGPT 36.8% | 16.0 pt |
| India | ChatGPT 65.0% | Google Gemini 24.7% | 40.4 pt |
AI price changes in Oct 2026
New plans, price increases and cuts, and discontinued plans announced by major AI tools this month (US prices in USD).
| Date | Plan | Change | Monthly | Source |
|---|---|---|---|---|
| Oct 12, 2026 | X Subscription Ultra | New plan | $200 | Source |
| Oct 12, 2026 | X Subscription Super | New plan | $100 | Source |
| Oct 12, 2026 | X Subscription Premium | New plan | $30 | Source |
| Oct 12, 2026 | X Subscription Plus | New plan | $8 | Source |
| Oct 12, 2026 | SuperGrok Heavy | Discontinued | $300 → — | Source |
| Oct 12, 2026 | SuperGrok | Discontinued | $30 → — | Source |
Only changes confirmed by an official announcement or major tech-press reporting are listed (checked 2026-10-17). Changes that did not affect the price, such as usage limits, are not included.
Frequently asked questions
Which AI had the highest share in Oct 2026?
Which AI gained the most in Oct 2026?
In which regions was an AI other than ChatGPT #1 in Oct 2026?
⚠ 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.