Mobile AI Assistant Usage Surges 107% YoY, Desktop Growth Slows
Event summary
- Mobile visitation to leading AI assistants reached 54.3M in December 2025, up 107% YoY from December 2024.
- Desktop visitation increased to 83.0M unique visitors, up 18% YoY, with ChatGPT capturing the largest share of gains.
- Microsoft Copilot saw the highest mobile growth at 246% YoY, while Google Gemini's desktop usage surged 648% YoY.
- ChatGPT dominated both mobile (34.5M) and desktop (56.4M) visitation, maintaining its lead position.
The big picture
The data underscores a clear shift towards mobile as the primary access point for AI assistants, with broad-based growth across major platforms. Desktop growth, while still strong, is more concentrated, highlighting ChatGPT's dominant position. This trend reflects the increasing integration of AI into everyday utilities and workflows, reshaping consumer behavior and platform dynamics in 2026.
What we're watching
- Mobile Dominance
- How the acceleration of mobile AI assistant usage will impact desktop adoption and platform strategies.
- Platform Differentiation
- Whether Google Gemini and Microsoft Copilot can sustain their rapid growth rates against ChatGPT's dominance.
- Integration Trends
- The pace at which AI assistants become more integrated into apps and on-the-go workflows, driving further user adoption.
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