Claude Explodes in Popularity: Anthropic Becomes the Fastest-Growing AI Platform

Consumer artificial intelligence is a fast-growing market. The response from users to this scenario has been to look beyond a single platform. The most popular consumer AI platforms drew 44.4 million unique desktop users in the U.S. alone, according to analytics firm Comscore’s March 2026 Consumer AI Chatbot Usage Rankings. While the overall market grew by over 21% in a single month, a massive traffic surge from Anthropic’s Claude in 2026 stole the spotlight.

Claude outpaces ChatGPT and Gemini in latest AI growth rankings for March 2026

OpenAI’s ChatGPT remains the undisputed heavyweight of the category. However, Claude is catching up as the fastest-growing platform on the leaderboard. Anthropic‘s chatbot experienced an explosive 130.1% month-over-month increase in desktop traffic, pulling in 2.66 million unique visitors. That surge has put Claude firmly into fourth place thanks to the power of its models.

The data reveals the current status of the “AI warfare” scenario. OpenAI’s flagship tool held onto the top spot with 33.86 million unique visitors, enjoying a healthy 18.9% month-over-month bump. Google Gemini comfortably took second place with 10.66 million unique visitors and a healthy 29.1% growth rate. Microsoft Copilot claimed third place with 5.02 million visitors, though it also enjoyed a significant 44.4% traffic acceleration.

Here is how the top seven consumer AI chatbot platforms performed on U.S. desktop computers during March 2026, according to Comscore’s tracking data:

A diversified AI landscape

The era of having only one AI assistant is over, the data reflects. Instead, they are actively experimenting with a wider range of platforms to find the one that best suits their needs.

“The acceleration of adoption of AI assistants is a call to action, with growth in usage occurring across both established leaders and emerging challengers,” said Smriti Sharma, Executive Vice President, Analytics, Comscore. Sharma highlighted that while ChatGPT remains the dominant player, challengers like Gemini, Copilot, and especially Claude are gaining meaningful traction as the market expands.

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