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AI Chatbot Market Share in United States
As of September 2026, ChatGPT accounts for 74.9% of AI chatbot referrals in United States, followed by Gemini (13.4%) and Microsoft Copilot (6.7%). Worldwide, ChatGPT accounts for 80.5%.
By Essentras Editorial Team. Data: StatCounter Global Stats. Figures and sentences on this page are computed from the data at every refresh.
Updated October 13, 2026. Data through September 2026.
October 2026 is still in progress (13 days in). It is shown separately as month to date and is not used in headline figures.
What this measures. Share of AI chatbot referrals: of all website visits that arrive from an AI chatbot, the percentage that came from each assistant. It measures traffic sent to websites. It is not a count of users.
United States: AI chatbot market share leaderboard
Share of AI chatbot referrals worldwide, September 2026. Change is in percentage points.
| Rank | Assistant | Share | vs 1 month ago | vs 3 months ago | vs 6 months ago | vs 12 months ago |
|---|---|---|---|---|---|---|
| 1 | ChatGPT | 74.9% | +2.6 | +8.7 | +6.4 | -3.4 |
| 2 | Gemini | 13.4% | +1.7 | +2.9 | +1.7 | +10.4 |
| 3 | Microsoft Copilot | 6.7% | -1.2 | -4.6 | -1.6 | -2.8 |
| 4▲1 | Perplexity | 3.1% | -0.6 | -1.8 | -2.8 | -4.6 |
| 5▼1 | Claude | 1.9% | -2.5 | -5.1 | -3.8 | +0.5 |
| 6 | DeepSeek | 0.1% | 0.0 | -0.1 | 0.0 | 0.0 |
United States: AI chatbot market share over time
- ChatGPT
- Gemini
- Perplexity
- Microsoft Copilot
- Claude
- DeepSeek
Dashed line: October 2026, month to date. Provisional until the month closes.
View data table
| Month | ChatGPT | Gemini | Perplexity | Microsoft Copilot | Claude | DeepSeek |
|---|---|---|---|---|---|---|
| Oct 26 month to date | 51.7% | 25.5% | 7.1% | 11.6% | 3.9% | 0.1% |
| Sep 26 | 74.9% | 13.4% | 3.1% | 6.7% | 1.9% | 0.1% |
| Aug 26 | 72.3% | 11.7% | 3.7% | 7.9% | 4.4% | 0.1% |
| Jul 26 | 65.1% | 12.7% | 6.0% | 9.0% | 7.2% | 0.1% |
| Jun 26 | 66.2% | 10.5% | 4.9% | 11.3% | 7.0% | 0.2% |
| May 26 | 67.1% | 10.8% | 5.2% | 10.8% | 6.0% | 0.1% |
| Apr 26 | 61.7% | 13.5% | 5.8% | 12.7% | 6.3% | 0.1% |
| Mar 26 | 68.5% | 11.8% | 5.8% | 8.3% | 5.6% | 0.1% |
| Feb 26 | 73.6% | 9.9% | 6.5% | 7.5% | 2.5% | 0.0% |
| Jan 26 | 74.9% | 9.0% | 6.5% | 8.0% | 1.5% | 0.0% |
| Dec 25 | 75.8% | 6.1% | 7.4% | 9.4% | 1.4% | 0.0% |
| Nov 25 | 78.8% | 3.3% | 8.1% | 8.4% | 1.4% | 0.0% |
| Oct 25 | 78.9% | 2.9% | 8.2% | 8.7% | 1.3% | 0.0% |
| Sep 25 | 78.3% | 3.1% | 7.7% | 9.5% | 1.3% | 0.0% |
| Aug 25 | 78.5% | 2.8% | 6.4% | 10.5% | 1.3% | 0.6% |
| Jul 25 | 80.2% | 2.7% | 5.6% | 9.6% | 1.6% | 0.4% |
| Jun 25 | 77.9% | 2.8% | 5.7% | 11.3% | 1.5% | 0.7% |
| May 25 | 78.4% | 2.5% | 5.5% | 12.4% | 0.8% | 0.3% |
| Apr 25 | 88.0% | 2.9% | 7.5% | 0.6% | 0.7% | 0.3% |
United States vs worldwide
Share of AI chatbot referrals, September 2026. Difference is United States minus worldwide, in percentage points.
| Assistant | United States | Worldwide | Difference |
|---|---|---|---|
| ChatGPT | 74.9% | 80.5% | -5.6 |
| Gemini | 13.4% | 10.9% | +2.5 |
| Microsoft Copilot | 6.7% | 1.8% | +4.9 |
| Perplexity | 3.1% | 5.8% | -2.8 |
| Claude | 1.9% | 1.0% | +0.9 |
| DeepSeek | 0.1% | 0.0% | +0.1 |
United States: desktop vs mobile
Share of AI chatbot referrals by device, September 2026.
| Assistant | All devices | Desktop | Mobile |
|---|---|---|---|
| ChatGPT | 74.9% | 73.9% | 88.0% |
| Gemini | 13.4% | 13.9% | 7.6% |
| Microsoft Copilot | 6.7% | 7.1% | 1.1% |
| Perplexity | 3.1% | 3.1% | 2.8% |
| Claude | 1.9% | 2.0% | 0.4% |
| DeepSeek | 0.1% | 0.1% | 0.1% |
FAQ
AI chatbot market share in United States: frequently asked questions
Which AI chatbot is most used in United States?▾
ChatGPT, with 74.9% of AI chatbot referrals in United States as of September 2026. Gemini is second at 13.4%.
How does United States compare with the world?▾
ChatGPT has 74.9% in United States vs 80.5% worldwide. ChatGPT is the assistant whose share differs most from the global figure: 74.9% in United States vs 80.5% worldwide.
How reliable are regional figures?▾
StatCounter measures referrals recorded on the websites in its network, filtered by visitor country. Smaller regions rest on less traffic, so month-to-month moves there are noisier than the worldwide series. Use the trend, not one month.
How often is this updated?▾
Every 2 days we re-check StatCounter. StatCounter publishes monthly, so a new month appears in the first days of the next month.
Data: StatCounter Global Stats, AI Chatbot Market Share, licensed CC BY-SA 3.0. Derived tables and charts on this page are shared under CC BY-SA 3.0. StatCounter CC BY-SA 3.0
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