AI Assistants Head into 2026 on a High Note: Comscore Reports Triple-Digit Growth on Mobile

Mobile usage climbs +107% YoY to 54.3M unique visitors; desktop grows +18% YoY to 83.0M as ChatGPT drives PC gains

RESTON, VA — January 29, 2026 — Comscore (Nasdaq: SCOR), a global leader in measuring and analyzing consumer behaviors, today released new data showing continued momentum for AI assistant destinations across devices heading into 2026. Using Comscore’s cross-platform measurement of unique visitors, total mobile visitation to the leading AI assistant destinations reached 54.3M in December 2025, up +107% YoY from December 2024.

Desktop visitation also increased, reaching 83.0M unique visitors, up +18% YoY with much of that incremental growth concentrated in ChatGPT.

AI Assistant Rankings – Dec 2025*

Mobile (Total: 54.3M, +107% YoY)

• OpenAI ChatGPT: 34.5M (+84% YoY)
• Google Gemini: 12.8M (+137% YoY)
• Microsoft Copilot: 10.6M (+246% YoY) — more than tripled
• Perplexity: 4.7M (+265% YoY)
• Meta: 1.3M (+50% vs. May 2025)

Desktop (Total: 83.0M, +18% YoY)

• OpenAI ChatGPT: 56.4M (+83% YoY)
• Microsoft Copilot: 33.4M (-28% YoY)
• Google Gemini: 12.3M (+648% YoY)
• Perplexity: 1.4M (+516% YoY)
• Anthropic Claude: 1.1M (+297% YoY)

“AI assistants are becoming an everyday utility, and the biggest story is how quickly the use of them on mobile is scaling,” said Smriti Sharma, EVP Analytics & Managing Director, Comscore CustomIQ, “As AI experiences become more integrated into apps and on-the-go workflows, we’re seeing sustained audience growth and increasingly clear leaders emerging across devices and empowering our clients with AI Intelligance to enable them to unlock this growing opportunity.”

Comscore’s latest snapshots underscore two clear shifts:

1. Mobile is accelerating as the default access point for leading assistants, with broad-based growth among major platforms.
2. Desktop growth remains strong but more concentrated, with ChatGPT capturing the largest share of year-over-year gains.

To learn more about how AI is reshaping consumer behavior including adoption trends, platform dynamics, and what it means for brands in 2026 download Comscore’s AI Intelligence Report.

*Source: CustomIQ Dec 2024 & Dec 2025.

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, over-the-top and theatrical 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