Last updated: September 10, 2025
Our team compiled data from 14 unique sources to estimate ChatGPT’s usage as of September 2025. Because each source had a different methodology for calculating usage, our model used a weighted average of all sources, with the weights based on the source’s longevity, credibility, and reputed accuracy. Further, we applied our model to the trailing 12 months to create a picture of the last year’s ChatGPT usage trend.
ChatGPT Number of Users: September 2025
The following table shares the number of unique users of ChatGPT as of September 2025. We break out standalone ChatGPT (website + app), Microsoft Copilot (which is powered by ChatGPT) and the combination of both. Afterwards, we share the 12 month trend.
| ChatGPT* *excluding Copilot | Microsoft Copilot | ChatGPT Total | |
| Users | 782 million | 93 million | 838 million |
| Visits | 4.8 billion | 997 million | 5.3 billion |
| AI Search Market Share | 60.4% | 14.1% | 74.5% |
| Estimated Quarterly User Growth | 7% ▲ | 6% ▲ | 7% ▲ |
| 12 Month Trend |  |  |  |
ChatGPT Total Monthly Users: 12 Month Trend (September 2025)
| Jul 2024 | Aug 2024 | Sep 2024 | Oct 2024 | Nov 2024 | Dec 2024 | Jan 2025 | Feb 2025 | Mar 2025 | Apr 2025 | May 2025 | Jun 2025 | Jul 2025 | Aug 2025 |
| 387 million | 409 million | 437 million | 444 million | 461 million | 476 million | 481 million | 483 million | 501 million | 541 million | 603 million | 723 million | 812 million | 838 million |
ChatGPT Market Share: September 2025
Below you can see the trend of ChatGPT’s market share over the past 12 months. Overall it remains fairly stagnant; while usage is growing well, competition from other generative AI chatbots continues increasing.
ChatGPT Market Share: 12 Month Trend (September 2025)
| Aug 2024 | Sep 2024 | Oct 2024 | Nov 2024 | Dec 2024 | Jan 2025 | Feb 2025 | Mar 2025 | Apr 2025 | May 2025 | Jun 2025 | Jul 2025 | Aug 2025 |
| 74.1% | 73.8% | 73.6% | 73.8% | 73.8% | 74.2% | 74.1% | 74.1% | 74.3% | 74.9% | 74.8% | 74.5% | 74.7% |
ChatGPT Competitor Market Share: September 2025
Below you will find the market share trend of ChatGPT’s competitors. ChatGPT remains the market leader by a wide margin even as relative upstarts like Claude rapidly gain in market share.
ChatGPT Competitor Market Share: 12 Month Trend (September 2025)
| ChatGPT Comptitor | Aug 2024 | Sep 2024 | Oct 2024 | Nov 2024 | Dec 2024 | Jan 2025 | Feb 2025 | Mar 2025 | Apr 2025 | May 2025 | Jun 2025 | Jul 2025 | Aug 2025 |
| Google Gemini | 13.8% | 13.6% | 13.5% | 13.5% | 13.4% | 13.5% | 13.5% | 13.7% | 13.4% | 13.4% | 13.5% | 13.5% | 13.4% |
| Perplexity | 5.3% | 5.6% | 5.6% | 5.8% | 6.0% | 6.0% | 6.2% | 6.1% | 6.3% | 6.2% | 6.2% | 6.5% | 6.5% |
| ClaudeAI | 2.6% | 2.8% | 2.8% | 2.9% | 3.1% | 3.1% | 3.2% | 3.3% | 3.3% | 3.2% | 3.2% | 3.5% | 3.4% |
ChatGPT Use Cases: September 2025
Below we have published the breakdown of how people are using ChatGPT. The largest use case is general research, followed by academic research. There are 26 other cases in the “Other” category.
ChatGPT Use Cases: 12 Month Trend (September 2025)
| Use Case | Aug 2024 | Sep 2024 | Oct 2024 | Nov 2024 | Dec 2024 | Jan 2024 | Feb 2025 | Mar 2025 | Apr 2025 | May 2025 | Jun 2025 | Jul 2025 | Aug 2025 |
| General Research | 36.9% | 36.8% | 36.7% | 36.3% | 36.8% | 36.7% | 37.5% | 35.9% | 36.4% | 36.20% | 36.5% | 36.8% | 36.6% |
| Academic Research | 18.5% | 18.8% | 19.0% | 18.2% | 17.5% | 18.2% | 18.5% | 18.2% | 18.6% | 18.70% | 18.4% | 17.9% | 18.1% |
| Coding Assistance | 14.3% | 14.5% | 13.6% | 14.6% | 14.5% | 14.7% | 13.7% | 13.7% | 14.1% | 14.20% | 14.5% | 14.6% | 14.1% |
| Email Composition | 13.3% | 13.8% | 14.4% | 14.9% | 13.4% | 14.0% | 14.1% | 13.9% | 14.0% | 14.00% | 14.1% | 14.1% | 13.8% |
| Commercial Research | 5.0% | 5.2% | 5.7% | 5.7% | 5.8% | 6.3% | 6.1% | 6.1% | 6.1% | 6.40% | 4.6% | 4.9% | 5.0% |
| Marketing Copywriting | 3.9% | 4.2% | 3.1% | 3.0% | 3.4% | 5.0% | 3.7% | 4.8% | 3.7% | 3.60% | 4.1% | 4.7% | 4.4% |
| Other | 8.1% | 6.7% | 7.5% | 7.3% | 8.7% | 5.1% | 6.4% | 7.5% | 7.1% | 6.9% | 7.8% | 7.0% | 8.0% |
ChatGPT Visitor Share by Country: September 2025
The table below lists the top countries in the world by share of ChatGPT visits. The US and India represent the largest visitor bases in the world, followed by Brazil at a distant third.
ChatGPT Visitor Share by Country (September 2025)
| Country | Share Of ChatGPT Visitors |
| United States | 16.0% |
| India | 16.0% |
| Brazil | 5.8% |
| Canada | 5.4% |
| France | 4.3% |
| Mexico | 4.1% |
| United Kingdom | 3.7% |
| Spain | 3.7% |
| Germany | 2.4% |
| Italy | 2.5% |
| Phillipines | 2.5% |
| Australia | 1.8% |
| Colombia | 1.6% |
| Argentina | 1.3% |
| Netherlands | 1.1% |
| South Korea | 1.1% |
ChatGPT Purchasing Trends: September 2025
In the table below, we have published the top industries in which customers are using ChatGPT to assist with making purchases. While at most 16% of the members of an industry use ChatGPT in their purchasing journey, that number is increasing.
Top Industries Using ChatGPT to Make Purchases (September 2025)
| # | Industry | % of Customers Using ChatGPT in Purchasing Journey | ChatGPT’s Estimated Financial Impact by Industry |
| 1 | Travel & Hospitality | 18% | $1.48 trillion |
| 2 | Retail & CPG | 16% | $1.11 trillion |
| 3 | IT Services | 14% | $936 billion |
| 4 | Lifestyle, Health & Wellness | 13% | $891 billion |
| 5 | Food & Beverage | 13% | $546 billion |
| 6 | Home Services | 12% | $385 billion |
| 7 | Healthcare | 11% | $378 billion |
| 8 | Automotive | 9% | $243 billion |
| 9 | B2B SaaS | 8% | $229 billion |
| 10 | Advertising & Marketing | 7% | $156 billion |
| 11 | Fintech | 7% | $135 billion |
| 12 | Insurance | 7% | $104 billion |
| 13 | Real Estate | 6% | $66 billion |
| 14 | Financial Services | 5% | $21.7 billion |
| 15 | Education | 5% | $12.6 billion |
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