V/Vinespire

LLM & AI Chatbot Market Share Statistics

Relative traffic and referral share among major generative AI chatbots and assistants. Sources include Similarweb’s Gen AI reporting and Ahrefs’ multi-bot referral studies. Where sources measure different things (web visits vs referral share), both are shown with attribution rather than merged into one “truth.”

Last updated: · 8 sourced statistics

Sourced statistics

>50%

ChatGPT accounted for over half of AI chatbot referral traffic in Ahrefs’ ~3,000-site study (February 6, 2025).

Source: Ahrefs

Data as of:

Note: Share of AI referrals, not share of all web traffic.

~1/3

Perplexity sent just shy of one third of AI traffic in the same Ahrefs February 2025 study, according to Ahrefs.

Source: Ahrefs

Data as of:

~18%

Gemini referred about 18% of AI traffic in Ahrefs’ February 2025 multi-bot sample, according to Ahrefs’ “63% of Websites Receive AI Traffic” post.

Source: Ahrefs

Data as of:

98%

ChatGPT, Perplexity, and Gemini together accounted for 98% of AI traffic among seven bots Ahrefs measured in that February 2025 study.

Source: Ahrefs

Data as of:

~10×

ChatGPT sent roughly ten times more referral visitors than any other AI chatbot in Ahrefs’ March 2026 panel of 74,752 sites (2.7M vs ~230k for Perplexity and Gemini), according to Ahrefs’ May 15, 2026 article.

Source: Ahrefs

Data as of:

+84%

ChatGPT’s web visits grew 84% between September 2024 and March 2026, according to Similarweb’s May 28, 2026 Gen AI Stats post.

Source: Similarweb

Data as of:

Note: Visit growth for the ChatGPT web property in Similarweb data.

+770%

Claude posted growth of roughly 770% between September 2024 and March 2026 in Similarweb’s Gen AI Stats 2026 write-up (May 28, 2026).

Source: Similarweb

Data as of:

Note: Relative growth from a smaller base; not absolute traffic leadership.

1.4%

ChatGPT’s average month-over-month referral growth rate was 1.4% over Ahrefs’ tracked period ending around March 2026, while remaining the volume leader, according to Ahrefs’ May 15, 2026 post.

Source: Ahrefs

Data as of:

Note: Average MoM growth of referrals in the panel—not OpenAI WAU growth.

Full source list

Deduplicated publishers used on this page, alphabetized.

Changelog: Updated 2026-07-18: initial publication of 8 sourced LLM/chatbot share statistics (Similarweb + Ahrefs).

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LLM & AI Chatbot Market Share FAQ

  • Similarweb’s Global AI Tracker snapshots shared publicly in early 2026 still show ChatGPT with a large majority of generative AI website traffic share, though Gemini’s share rose substantially over the year in those trackers. Treat tracker slides as point-in-time, not perpetual.