According to Similarweb (@Similarweb), the latest 2026 Global AI Tracker reveals significant shifts in generative AI website traffic. ChatGPT's global share has declined from 86.7% a year ago to 64.5% today, highlighting increasing competition. Google's Gemini has surged past the 20% threshold, now holding 21.5% of the worldwide market. Meanwhile, Grok has overtaken 3% and is approaching DeepSeek, while platforms like Perplexity, Claude, and Copilot maintain steady but smaller shares. These numbers indicate ongoing market fragmentation, offering new business opportunities for emerging AI platforms and signaling increased user demand for diverse AI solutions. Enterprises and developers should monitor these trends for partnership and integration opportunities as the generative AI space becomes more competitive (Source: Similarweb, https://x.com/Similarweb/status/2008805674893939041).

According to @demishassabis referencing @Similarweb data, the AI generative website traffic landscape is rapidly shifting as Gemini has reached an 18.2% share, closing in on the 20% benchmark. Over the past year, ChatGPT’s dominance has declined from 87.2% to 68.0%, signaling increased competition and user diversification in the AI chatbot market. Notably, Grok’s user momentum continues, and platforms like DeepSeek, Claude, Perplexity, and Copilot are maintaining steady or slightly increasing shares. This trend highlights significant business opportunities for new AI entrants and underscores the growing demand for alternative large language model platforms. For companies developing AI tools or services, these shifts point to expanding user bases and the potential for niche market penetration. (Source: @demishassabis, @Similarweb, Dec 26, 2025)