AI Chatbot Market Share 2026: ChatGPT, Gemini, Perplexity, Copilot and Claude
ChatGPT had 80.47% of worldwide AI chatbot market share in September 2026, according to StatCounter Global Stats. Google Gemini was second with 10.94%, up 8.12 points in a year.
Key statistics
- ChatGPT had 80.47% of worldwide AI chatbot market share in September 2026, according to StatCounter Global Stats.
- Google Gemini had 10.94% of worldwide AI chatbot market share in September 2026, according to StatCounter Global Stats.
- Google Gemini's worldwide AI chatbot market share rose by 8.12 percentage points between September 2025 and September 2026, calculated by StatisticsGlobal from StatCounter Global Stats data.
- Perplexity's worldwide AI chatbot market share fell by 5.01 percentage points between September 2025 and September 2026, calculated by StatisticsGlobal from StatCounter Global Stats data.
- ChatGPT sent 7.4 times as many AI chatbot referrals as Google Gemini worldwide in September 2026, calculated by StatisticsGlobal from StatCounter Global Stats data.
AI chatbot market share worldwide
StatCounter measures AI chatbot referrals: visits that reach websites running its tracking code after a click inside a chatbot. It is not a count of prompts or users.
ChatGPT sends most AI chatbot traffic to websites. Its share was 80.47% in September 2026, almost unchanged on a year earlier.
The real change is underneath. Google Gemini went from 2.82% to 10.94%, and Perplexity fell from 10.85% to 5.84%. Gemini is now clearly in second place.
For traditional search, see our search engine market share statistics.
Source: StatCounter Global Stats (CC BY-SA 3.0).
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ChatGPT had 80.47% of worldwide AI chatbot market share in September 2026, according to StatCounter Global Stats.
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Google Gemini had 10.94% of worldwide AI chatbot market share in September 2026, according to StatCounter Global Stats.
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Perplexity had 5.84% of worldwide AI chatbot market share in September 2026, according to StatCounter Global Stats.
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Microsoft Copilot had 1.78% of worldwide AI chatbot market share in September 2026, according to StatCounter Global Stats.
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Claude had 0.95% of worldwide AI chatbot market share in September 2026, according to StatCounter Global Stats.
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Google Gemini's worldwide AI chatbot market share rose by 8.12 percentage points between September 2025 and September 2026, calculated by StatisticsGlobal from StatCounter Global Stats data.
How we calculated it: September 2026 share (10.94%) minus September 2025 share (2.82%).
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Perplexity's worldwide AI chatbot market share fell by 5.01 percentage points between September 2025 and September 2026, calculated by StatisticsGlobal from StatCounter Global Stats data.
How we calculated it: September 2026 share (5.84%) minus September 2025 share (10.85%).
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ChatGPT sent 7.4 times as many AI chatbot referrals as Google Gemini worldwide in September 2026, calculated by StatisticsGlobal from StatCounter Global Stats data.
How we calculated it: ChatGPT share divided by Google Gemini share, same month, same source.
| AI chatbot | September 2025 | September 2026 | Change (points) |
|---|---|---|---|
| ChatGPT | 81.12% | 80.47% | -0.65 |
| Google Gemini | 2.82% | 10.94% | +8.12 |
| Perplexity | 10.85% | 5.84% | -5.01 |
| Microsoft Copilot | 4.04% | 1.78% | -2.26 |
| Claude | 0.99% | 0.95% | -0.04 |
| DeepSeek | 0.18% | 0.02% | -0.16 |
AI chatbot market share by country
ChatGPT leads in every country below. Gemini gained share in all of them over the year.
Gemini is strongest in Bangladesh (21.47%) and Brazil (18.14%). Microsoft Copilot does best in the United States, where it had 6.69%.
Source: StatCounter Global Stats (CC BY-SA 3.0).
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ChatGPT had 74.87% of AI chatbot market share in the United States in September 2026, according to StatCounter Global Stats.
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Google Gemini's AI chatbot market share in the United States rose by 10.38 percentage points between September 2025 and September 2026, calculated by StatisticsGlobal from StatCounter Global Stats data.
How we calculated it: September 2026 share minus September 2025 share, same source.
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ChatGPT had 79.8% of AI chatbot market share in the United Kingdom in September 2026, according to StatCounter Global Stats.
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Google Gemini's AI chatbot market share in the United Kingdom rose by 7.92 percentage points between September 2025 and September 2026, calculated by StatisticsGlobal from StatCounter Global Stats data.
How we calculated it: September 2026 share minus September 2025 share, same source.
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ChatGPT had 77.32% of AI chatbot market share in India in September 2026, according to StatCounter Global Stats.
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Google Gemini's AI chatbot market share in India rose by 10 percentage points between September 2025 and September 2026, calculated by StatisticsGlobal from StatCounter Global Stats data.
How we calculated it: September 2026 share minus September 2025 share, same source.
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ChatGPT had 78.93% of AI chatbot market share in Germany in September 2026, according to StatCounter Global Stats.
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Google Gemini's AI chatbot market share in Germany rose by 9.63 percentage points between September 2025 and September 2026, calculated by StatisticsGlobal from StatCounter Global Stats data.
How we calculated it: September 2026 share minus September 2025 share, same source.
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ChatGPT had 74.1% of AI chatbot market share in Japan in September 2026, according to StatCounter Global Stats.
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Google Gemini's AI chatbot market share in Japan rose by 11.65 percentage points between September 2025 and September 2026, calculated by StatisticsGlobal from StatCounter Global Stats data.
How we calculated it: September 2026 share minus September 2025 share, same source.
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ChatGPT had 76.48% of AI chatbot market share in Brazil in September 2026, according to StatCounter Global Stats.
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Google Gemini's AI chatbot market share in Brazil rose by 14.86 percentage points between September 2025 and September 2026, calculated by StatisticsGlobal from StatCounter Global Stats data.
How we calculated it: September 2026 share minus September 2025 share, same source.
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ChatGPT had 84.98% of AI chatbot market share in Indonesia in September 2026, according to StatCounter Global Stats.
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Google Gemini's AI chatbot market share in Indonesia rose by 4.09 percentage points between September 2025 and September 2026, calculated by StatisticsGlobal from StatCounter Global Stats data.
How we calculated it: September 2026 share minus September 2025 share, same source.
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ChatGPT had 74.97% of AI chatbot market share in Bangladesh in September 2026, according to StatCounter Global Stats.
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Google Gemini's AI chatbot market share in Bangladesh rose by 15.57 percentage points between September 2025 and September 2026, calculated by StatisticsGlobal from StatCounter Global Stats data.
How we calculated it: September 2026 share minus September 2025 share, same source.
| Country | ChatGPT | Gemini | Perplexity | Copilot | Claude | Gemini change since Sep 2025 (points) |
|---|---|---|---|---|---|---|
| United States | 74.87% | 13.43% | 3.07% | 6.69% | 1.85% | +10.38 |
| United Kingdom | 79.80% | 10.21% | 2.74% | 5.68% | 1.55% | +7.92 |
| India | 77.32% | 16.01% | 3.60% | 1.70% | 1.37% | +10.00 |
| Germany | 78.93% | 11.30% | 5.27% | 3.06% | 1.41% | +9.63 |
| Japan | 74.10% | 16.73% | 2.01% | 6.21% | 0.88% | +11.65 |
| Brazil | 76.48% | 18.14% | 2.14% | 2.14% | 1.10% | +14.86 |
| Indonesia | 84.98% | 6.14% | 8.00% | 0.28% | 0.60% | +4.09 |
| Bangladesh | 74.97% | 21.47% | 1.54% | 0.98% | 1.03% | +15.57 |
AI chatbot market share trend
- ChatGPT
- Gemini
- Perplexity
Source: StatCounter Global Stats (CC BY-SA 3.0). Monthly data in the table below and the CSV download.
| Month | ChatGPT | Gemini | Perplexity |
|---|---|---|---|
| Oct 2025 | 81.35% | 3.02% | 11.13% |
| Nov 2025 | 81.84% | 2.97% | 11.06% |
| Dec 2025 | 79.74% | 4.74% | 10.83% |
| Jan 2026 | 80.51% | 7.20% | 7.87% |
| Feb 2026 | 79.98% | 7.50% | 7.88% |
| Mar 2026 | 78.16% | 8.65% | 7.07% |
| Apr 2026 | 76.85% | 9.00% | 7.73% |
| May 2026 | 79.05% | 7.04% | 7.67% |
| Jun 2026 | 76.89% | 7.96% | 7.87% |
| Jul 2026 | 77.89% | 9.93% | 5.86% |
| Aug 2026 | 79.40% | 10.93% | 4.34% |
| Sep 2026 | 80.47% | 10.94% | 5.84% |
How StatCounter measures AI chatbot market share
StatCounter counts referrals. A referral is a visit to a website that came from a click inside a chatbot. StatCounter only sees websites that run its tracking code, across more than 1 million sites.
This is not a count of users or prompts. A chatbot that shows more links in its answers can send more visits per user. So read these numbers as each chatbot's share of the traffic AI assistants send to websites.
StatCounter publishes this data under a CC BY-SA 3.0 licence. Our calculations from it, and the downloads on this page, use the same licence.
Frequently asked questions
What is ChatGPT's market share?
ChatGPT had 80.47% of worldwide AI chatbot market share in September 2026, according to StatCounter Global Stats.
Is Gemini gaining on ChatGPT?
Google Gemini's worldwide share rose by 8.12 percentage points between September 2025 and September 2026, calculated by StatisticsGlobal from StatCounter Global Stats data.
Which AI chatbot sends the most traffic to websites?
ChatGPT. It accounted for 80.47% of AI chatbot referrals to websites worldwide in September 2026, according to StatCounter Global Stats.
How is AI chatbot market share measured?
StatCounter counts referrals: visits to websites that run its tracking code after someone clicks a link inside a chatbot. It does not count prompts or users.
Sources
- StatCounter Global Stats, AI Chatbot Market Share Worldwide, monthly series to September 2026, accessed 15 October 2026. Link · Saved data copy · Licence: CC BY-SA 3.0
- StatCounter Global Stats, AI Chatbot Market Share United States, monthly series to September 2026, accessed 15 October 2026. Link · Saved data copy · Licence: CC BY-SA 3.0
- StatCounter Global Stats, AI Chatbot Market Share United Kingdom, monthly series to September 2026, accessed 15 October 2026. Link · Saved data copy · Licence: CC BY-SA 3.0
- StatCounter Global Stats, AI Chatbot Market Share India, monthly series to September 2026, accessed 15 October 2026. Link · Saved data copy · Licence: CC BY-SA 3.0
- StatCounter Global Stats, AI Chatbot Market Share Germany, monthly series to September 2026, accessed 15 October 2026. Link · Saved data copy · Licence: CC BY-SA 3.0
- StatCounter Global Stats, AI Chatbot Market Share Japan, monthly series to September 2026, accessed 15 October 2026. Link · Saved data copy · Licence: CC BY-SA 3.0
- StatCounter Global Stats, AI Chatbot Market Share Brazil, monthly series to September 2026, accessed 15 October 2026. Link · Saved data copy · Licence: CC BY-SA 3.0
- StatCounter Global Stats, AI Chatbot Market Share Indonesia, monthly series to September 2026, accessed 15 October 2026. Link · Saved data copy · Licence: CC BY-SA 3.0
- StatCounter Global Stats, AI Chatbot Market Share Bangladesh, monthly series to September 2026, accessed 15 October 2026. Link · Saved data copy · Licence: CC BY-SA 3.0
Changes to this page
- : Page published with data to September 2026.