Comscore's Latest AI Intelligence Report Shows Competition Intensifying as Claude and Gemini Gain Ground on ChatGPT
Comscore’s Q2 2026 AI Intelligence Report details shifting AI assistant market shares and growing monetization within AI-driven search and discovery.
Rhea-AI Summary
Comscore (SCOR) released its Q2 2026 AI Intelligence Report, showing rapid diversification in consumer use of AI assistants as overall usage expands.
From January to June 2026, Claude’s share of total AI prompt volume rose from 2% to 11%, while Google’s Gemini increased from 17% to 30%. ChatGPT remained the category leader but saw its share fall from 70% to 50%, even as it reached 168 million desktop conversations in June 2026 and grew multiplatform visitation to 99 million from 59 million a year earlier. AI assistant reach in June 2026 climbed to 35% of desktop users and 29% of mobile users, up from 25% and 12% in January 2025. The report highlights stronger mobile adoption among women, rising AI use across TikTok, Meta and YouTube, growing AI search overviews on Google and Bing, and sharp increases in brand mentions and sponsored ads within AI responses.
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Key Figures
- Claude prompt-volume share
- 2% to 11%
- January to June 2026
- Gemini prompt-volume share
- 17% to 30%
- January to June 2026
- ChatGPT prompt-volume share
- 70% to 50%
- January to June 2026
- AI assistant reach
- 35% desktop; 29% mobile
- June 2026
- ChatGPT desktop conversations
- 168 million
- June 2026
- Google AI overview searches
- 25.8% to 39.4%
- July 2025 to June 2026
- Bing Copilot Search
- 11.8% to 17.3%
- July 2025 to June 2026
- Sponsored hotel-search ads
- 6% to 24%
- Prompts with source links, March to May 2026
Previous AI Reports
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Launched sponsored-chat advertising measurement and business-impact tracking capabilities
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Reported rapid Claude growth and expanding AI assistant reach across devices
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Reported higher combined chatbot visitors and Claude's movement into fourth place
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Reported triple-digit mobile growth and higher desktop visitation for leading assistants
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Established benchmarks for AI adoption, search visibility, and consumer engagement
24h Move is the share-price change in the day after each event; other market factors may also have contributed.
Key Terms
ai overviews technical
ai-powered search technical
AI-generated analysis. How Rhea-AI works. Not financial advice.
New report finds AI assistant adoption climbing across every age group, women continuing to lead usage on mobile, and early growth in ad monetization
NEW YORK, Sept. 22, 2026 (GLOBE NEWSWIRE) -- Comscore, a global leader in measuring and analyzing consumer behaviors, today released its Q2 2026 AI Intelligence Report, which shows that consumers are rapidly diversifying which AI assistants they use even as the overall category keeps expanding.
According to Comscore panel data, Claude's share of total AI prompt volume grew from
“As competition among AI assistants intensifies and prompt volume shifts across platforms, brands and publishers can no longer assume that a single AI experience defines the market,” said Smriti Sharma, Chief Analytics and Technology Officer at Comscore. “Understanding where consumers are turning with their questions, which sources AI cites in response, and how those interactions convert into measurable business outcomes is becoming essential to any brand's growth strategy in this new era of AI-influenced discovery.”
The report offers an independent, comprehensive, panel-based view of how AI usage, AI-powered search, and brand visibility inside AI responses are evolving together. As prompt volume fragments across a growing set of platforms and AI overviews become a fixture of everyday search, the data offers marketers, publishers, and platforms a clearer picture of where consumer attention is migrating.
Comscore Q2 2026 AI Intelligence Report Key Findings
- ChatGPT remains the category leader, but its share is eroding. ChatGPT reached 168 million desktop conversations in June 2026 and grew its multiplatform visitation to 99 million from 59 million a year earlier, yet its share of total AI prompt volume fell from
70% to50% between January and June 2026 as consumers spread their usage across a wider range of tools.
- Claude’s share increased more than fivefold during time. Claude’s share of the AI prompt volume rose from
2% to11% between January and June 2026. Desktop conversations increased from 1.1 million in October 2025 to a high of nearly 40 million in April 2026 before plateauing at 22.3 million in June — still about 20 times the levels in October 2025, even as growth slowed through the summer months.
- Gemini’s share of AI prompt volume increased from
17% to30% from January to June 2026, with desktop conversations rising from 8 million to 89 million over the past year despite a similar early-summer slowdown.
- AI assistant reach continues to expand. In June 2026,
35% of desktop users and29% of mobile users visited an AI assistant, compared to25% and12% , respectively, in January 2025.
- Women are still the biggest users of AI assistants on mobile. Female mobile index scores for ChatGPT, Copilot and Gemini (110, 119 and 115 respectively) continued to outperform male usage on mobile in June 2026 despite men over-indexing on desktop on the same platforms.
- Major social platforms have experienced significant uplift in visitors using AI assistants between June 2025 and June 2026. TikTok grew from
32% to53% , Meta from32% to47% and YouTube from30% to39% .
- AI overviews continue to grow their presence in search. Google desktop searches with an AI overview grew from
25.8% in July 2025 to39.4% in Jun 2026, and Bing’s Copilot Search increased from11.8% to17.3% in the same time period.
- AI is emerging as both a brand discovery and monetization channel. Fashion brand mentions in AI responses grew
123% and Health/Beauty brand mentions grew150% between January and March 2026, while sponsored ads began appearing inside AI travel search results — rising from6% of hotel-related prompts with source links in March 2026 to24% by May 2026.
The full Q2 2026 AI Intelligence Report is available for download here.
About Comscore
Comscore is a global, trusted partner for planning, transacting, and evaluating media across platforms. With an unmatched data footprint that combines digital, linear TV and over-the-top viewership intelligence with advanced audience insights, Comscore empowers media buyers and sellers to quantify their multiscreen behavior and make meaningful business decisions with confidence. A proven leader in measuring digital and TV audiences and advertising at scale, Comscore is the industry's emerging third-party source for reliable and comprehensive cross-platform measurement.
Media
Marie Scoutas
Comscore, Inc.
press@comscore.com
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What does the report show about overall AI assistant reach on desktop and mobile?
The report shows that AI assistant reach continues to expand. In June 2026, 35% of desktop users and 29% of mobile users visited an AI assistant, compared to 25% and 12%, respectively, in January 2025.
How does AI assistant usage differ by gender on mobile and desktop?
Women remain the largest users of AI assistants on mobile. In June 2026, female mobile index scores for ChatGPT, Copilot and Gemini (110, 119 and 115 respectively) exceeded male usage, while men over-indexed on desktop for the same platforms.
What trends does Comscore identify in AI’s role in brand discovery and monetization?
The report finds that AI is emerging as a brand discovery and monetization channel. Fashion brand mentions in AI responses grew 123% and Health/Beauty brand mentions grew 150% between January and March 2026. Sponsored ads also began appearing in AI travel search results, increasing from 6% of hotel-related prompts with source links in March 2026 to 24% by May 2026.
How are AI overviews changing search behavior on Google and Bing?
Google desktop searches that included an AI overview rose from 25.8% in July 2025 to 39.4% in June 2026. Over the same period, Bing’s Copilot Search presence increased from 11.8% to 17.3%, indicating a growing role for AI-generated overviews in search results.
What changes did Comscore observe in AI assistant usage on major social platforms?
Between June 2025 and June 2026, visitors using AI assistants on social platforms increased. TikTok’s share rose from 32% to 53%, Meta’s from 32% to 47%, and YouTube’s from 30% to 39%, reflecting higher AI engagement alongside social media use.