Claude Web Traffic Up 306% in a Single Quarter as ChatGPT Share Falls to 54.7%

The Decoder·medium signal

New Similarweb data (via Momentic/The Decoder) shows Claude grew 306% in a quarter — from 203M visits in January to 824M in April 2026 — vaulting it to the third-largest consumer AI chatbot, with US share at 12.5%. ChatGPT's worldwide web-visit share fell from ~76.5% (Feb 2025) to 54.7%, while Gemini doubled to 27.4%. The signal for builders: the assistant market is genuinely fragmenting, and Claude is now a mainstream consumer destination, not just a developer tool.