A recent report by First Page Sage, titled “Top Generative AI Chatbots by Market Share – August 2025,” offers a comprehensive analysis of the U.S. generative AI chatbot market. The study, which defines chatbots as LLM-based applications used for answering queries and content creation, reveals a dynamic and competitive landscape.
AI Market Share and Landscape Shifting?
According to the report, ChatGPT holds a commanding lead with a 60.40% market share in AI search, solidifying its position as the industry frontrunner. Microsoft Copilot, Google Gemini, and Perplexity follow it.

The report highlights ChatGPT’s dominance and the slowing down of its growth rate because its competitors, particularly those from tech giants like Google and Microsoft, have enhanced their offerings.
The analysis also focuses on user growth, identifying Claude AI as the fastest-growing chatbot with a 14% quarterly increase. Perplexity and Deepseek follow, indicating that smaller players are successfully carving out a niche in the market.

The report provides detailed, month-by-month market share trends for the leading chatbots from 2024 to 2025, offering a clear picture of the evolving market.
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