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Top Generative AI Chatbots by Market Share – March 2025

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Generative Ai Chatbots By Market Share March 2025

Last Updated: March 6, 2025

Our team collected data on the market share of each of the major generative AI chatbots in the U.S. as of March 6, 2025. The results are displayed in the tables below, organized by both market share and quarterly user growth. We also provide market share trend over time for the top 4 generative AI chatbots: ChatGPT, Google Gemini, Perplexity, and ClaudeAI.

For the purposes of this study, the term “generative AI chatbot” refers to LLM-based web & mobile applications used by the public to seek answers or create content.

Top Generative AI Chatbots by Market Share – March 2025

Generative AI ChatbotDescriptionLLMs UsedAI Search Market ShareEstimated Quarterly User Growth
1ChatGPT
(excluding Copilot)		General-purpose AI chatbotGPT-3.5, GPT-459.70%8% ▲
2Microsoft CopilotGeneral-purpose AI assistantGPT-414.40%6% ▲
3Google GeminiGeneral-purpose AI assistantGemini13.50%5% ▲
4PerplexityAccuracy-focused AI search engineMistral 7B, Llama 26.20%10% ▲
5Claude AIBusiness-focused AI assistantClaude 33.20%14% ▲
6GrokGeneral-purpose AI search engineGrok 2, Grok 30.80%12% ▲
7DeepseekGeneral-purpose AI search engineDeepSeek V30.70%10% ▲
8KomoLink-surfacing AI search engineNot publicly disclosed0.60%7% ▲
9Brave Leo AIPrivacy-focused AI assistantMixtral 8x7B0.30%6% ▲
10AndiSimplicity-focused AI search engineNot publicly disclosed0.20%4% ▲

The Fastest Growing Generative AI Chatbots

The following table displays the fastest-growing Generative AI chatbots in the US as of March 6, 2025, judged by their change in estimated users quarter-over-quarter. ChatGPT remains the market leader, but its growth has eased as both Google and Microsoft release improvements to their AI assistants. Among the startups, general purpose AI chatbots have seen slow but steady user acquisition, while specialty AI tools such as developer-focused Phind and business-focused Claud AI top our growth report.

Fastest Growing Generative AI Chatbots – March 2025

Generative AI ChatbotDescriptionLLMs UsedAI Search Market ShareEstimated Quarterly User Growth
1Claude AIBusiness-focused AI assistantClaude 33.20%14% ▲
2GrokGeneral-purpose AI search engineGrok 2, Grok 30.80%12% ▲
3PerplexityAccuracy-focused AI search engineMistral 7B, Llama 26.20%10% ▲
4DeepseekGeneral-purpose AI search engineDeepSeek V30.70%10% ▲
5ChatGPT
(excluding Copilot)		General-purpose AI chatbotGPT-3.5, GPT-459.70%8% ▲
6KomoLink-surfacing AI search engineNot publicly disclosed0.30%7% ▲
7Microsoft CopilotGeneral-purpose AI assistantGPT-414.40%6% ▲
8Brave Leo AIPrivacy-focused AI assistantMixtral 8x7B0.60%6% ▲
9Google GeminiGeneral-purpose AI assistantGemini13.50%5% ▲
10AndiSimplicity-focused AI search engineNot publicly disclosed0.20%5% ▲

ChatGPT Market Share: 2025 Trend

Below you will find the YTD 2025 trend of ChatGPT’s market share in the generative AI chatbot space. As the pioneer and marketplace leader, it has the most to lose, and it has seen a decline in market share this year at the hands of its many smaller competitors.

NOTE: ChatGPT’s market share includes that of Bing’s Copilot product, as they both use the same underlying system; the difference is only that Microsoft Copilot personalizes ChatGPT based on user data in the Microsoft ecosystem.

MonthChatGPT Market Share
January 202476.4%
February 202476.1%
March 202475.8%
April 202475.3%
May 202475.0%
June 202474.9%
July 202474.4%
August 202474.1%
September 202473.8%
October 202473.6%
November 202473.8%
December 202473.8%
January 202574.2%
February 202574.1%
Chatgpt Market Share 2025 Trend March 2025

Google Gemini Market Share: 2025 Trend

Below you will find the YTD 2025 trend of Google Gemini’s market share in the generative AI chatbot space. It has experienced some decline in market share this year, even moreso than ChatGPT, as the fanfare around its release in December 2022 subsided. 

MonthGemini Market Share
January 202416.2%
February 202415.5%
March 202414.8%
April 202414.9%
May 202414.5%
June 202413.8%
July 202413.3%
August 202413.8%
September 202413.6%
October 202413.5%
November 202413.5%
December 202413.4%
January 202513.5%
February 202513.5%
Gemini Market Share 2025 Trend March 2025

Perplexity Market Share: 2025 Trend

Below you will find the YTD 2025 trend of Perplexity’s market share in the generative AI chatbot space. While its growth may not look significant, it has taken some market share from ChatGPT and Gemini this year. 

MonthPerplexity Market Share
January 20242.7%
February 20242.7%
March 20243.0%
April 20242.9%
May 20243.0%
June 20243.0%
July 20243.8%
August 20245.3%
September 20245.5%
October 20245.6%
November 20245.8%
December 20246.0%
January 20256.0%
February 20256.2%
Perplexity Market Share 2025 Trend March 2025

ClaudeAI Market Share: 2025 Trend

Below you will find the YTD 2025 trend of ClaudeAI’s market share in the generative AI chatbot space. Like Perplexity, it has contributed to the splintering of the generative AI market and loss of market share from ChatGPT and Gemini. 

MonthClaudeAI Market Share
January 20242.1%
February 20242.2%
March 20242.4%
April 20242.5%
May 20242.6%
June 20242.5%
July 20242.5%
August 20242.6%
September 20242.8%
October 20242.8%
November 20242.9%
December 20243.1%
January 20253.1%
February 20253.2%
Claudeai Market Share 2025 Trend March 2025

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