Claude Surges 130% as AI Chatbot Market Hits 44.4M Users
Event summary
- Comscore's March 2026 rankings show U.S. desktop AI chatbot usage grew 21.3% MoM to 44.4M unique visitors.
- ChatGPT remains leader with 33.86M users (+18.9% MoM), followed by Google Gemini (10.66M) and Microsoft Copilot (5.02M).
- Anthropic's Claude grew 130.1% MoM to 2.66M users, entering top 4 for first time.
- Google Gemini (+29.1%) and Microsoft Copilot (+44.4%) also showed strong growth.
The big picture
The AI chatbot market continues rapid expansion with significant month-over-month growth across all major platforms. While ChatGPT maintains clear leadership, the surge of Claude and strong gains by Gemini and Copilot suggest increasing consumer exploration of alternatives. This fragmentation presents both challenges and opportunities for advertisers seeking to engage with AI-assisted audiences.
What we're watching
- Market Consolidation
- Whether ChatGPT can maintain dominance as competitors gain traction.
- Adoption Trends
- The pace at which niche players like Claude scale beyond early adopters.
- Monetization Strategies
- How platforms will balance growth with sustainable business models.
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