ChatGPT Web Share Drops 22 Points as Gemini Surges
Get the Tech newsletter
Daily tech — startups, AI labs, chips, the launches that shape the next decade. Free.
- ChatGPT dropped from 76% to 54% of worldwide AI-chatbot web visits between May 2025 and May 2026, a 22-point decline in Similarweb's stacked share metric.
- Gemini climbed from 6% to 28% of worldwide web visit share over the same year, nearly quintuple its prior footprint and now the clear runner-up.
- Claude grew from 1% to 9% of worldwide web visit share, a ninefold jump though still a distant third behind ChatGPT and Gemini.
- The figures measure desktop and mobile web visits only, not monthly active users or revenue, per Similarweb data via Momentic as of May 2026.
- Gemini can post roughly 28% web share while carrying a reported 1 billion app MAU because most of its usage happens in-app on Android, off the web.
Why it matters: The 22-point web-share collapse is the first hard data showing ChatGPT's lead is no longer uncontested — Google's Gemini has converted from a distant runner-up into a credible web challenger. Because the metric excludes in-app usage, where Gemini is dominant with ~1B MAU on Android, OpenAI's effective lead is likely already narrower than Similarweb captures.
Ask SkimNews
