The 2025 study by OneLittleWeb, titled “The AI ‘Big Bang’ Study 2025,” provides a comprehensive analysis of the top 10 AI chatbots based on web traffic, media citations, and user engagement from August 2024 to July 2025. The study, utilizing data from sources like Semrush, aitools.xyz, MuckRack, and app stores, ranks chatbots across eight key performance indicators, offering insights into their market presence, growth, and user experience. The AI tools market, encompassing over 10,500 tools, recorded nearly 100 billion web visits, with the top 10 chatbots capturing 55.88 billion visits, or 58.8% of the total, highlighting significant market consolidation.
ChatGPT, developed by OpenAI, dominates with 46.59 billion visits and a 48.36% market share, maintaining its position as the most popular chatbot due to its robust performance in language tasks, accessibility, and free availability. Grok, created by xAI, emerges as a surprising second-place contender with 686.91 million visits and a 1.17% market share, driven by its integration into the X platform and rapid user base growth. Other notable chatbots include DeepSeek, Gemini, Perplexity, Claude, Microsoft Copilot, Blackbox AI, Monica, and Meta AI, with DeepSeek and Grok showing the fastest growth rates, the former with a 113,007% year-over-year increase.
The study reveals a 123.35% year-over-year traffic growth for these top chatbots, adding 30.9 billion visits compared to the previous year, underscoring the rising popularity of conversational AI. Media coverage significantly influences traffic, with peaks in January and February 2025 (817.6K and 1.1M citations) correlating with traffic surges to 4.3 billion and 4.4 billion visits, respectively, and a high of 5.8 billion in March. However, some chatbots like DeepSeek experienced a 39.5% traffic drop over five months, reflecting volatility tied to media attention.
The methodology emphasizes transparency, using weighted scores across visibility, growth, and user experience metrics to ensure a balanced ranking. This approach helps identify trusted and high-performing chatbots, offering actionable insights for users and businesses. For instance, chatbots like Poe attract users by providing access to multiple AI models, while Meta AI benefits from integration into platforms like Instagram and WhatsApp, likely underrepresenting its true usage.
For businesses, the study suggests a dual strategy: optimizing for traditional search engines, which still dominate with 1.86 trillion visits, while adapting content for AI-driven platforms through structured data and high-quality, concise answers. The findings dispel the notion that chatbots are replacing search engines, showing they complement them by serving distinct user needs, such as creative tasks versus navigational searches. As AI chatbots continue to evolve, their role in reshaping online discovery is undeniable, but search engines remain dominant for now.
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