
ChatGPT Fell Below 50% Market Share for the First Time Since 2022
ChatGPT’s market share just dropped below 50% for the first time since 2022.
According to Sensor Tower, ChatGPT crossed that line in March 2026.
ChatGPT’s competitors are stealing market share FAST:
Gemini usage has grown to 27.7%, with more than 1 in 4 people now using it.
And Claude’s US share jumped from 4.4% to nearly 14%.
As of May 2026, the AI assistant market looks like this:
ChatGPT: 46.4%
Gemini: 27.7%
Claude: 10.3%
ChatGPT was basically synonymous with generative AI for the last few years.
But now we’re seeing people spread their searches, questions, and recommendations across multiple AI platforms.
For SEOs and marketers, that means optimizing for “ChatGPT visibility” alone isn’t enough.
You need to be thinking about how your business shows up across ChatGPT, Gemini, Claude, and whatever comes next.
AI search is fragmenting, just like traditional search did, and we’re only at the beginning.
Credit to Charly Wargnier for the graphic.