Will's Blog: Apptopia: ChatGPT's US market share fell from 69.1% to 45.3% between Jan. 2025 and Jan. 2026; Gemini rose from 14.7% to 25.1%, Grok rose from 1.6% to 15.2% (Alex Kantrowitz/Big Technology)

3 February 2026

Apptopia: ChatGPT's US market share fell from 69.1% to 45.3% between Jan. 2025 and Jan. 2026; Gemini rose from 14.7% to 25.1%, Grok rose from 1.6% to 15.2% (Alex Kantrowitz/Big Technology)

Alex Kantrowitz / Big Technology:
Apptopia: ChatGPT's US market share fell from 69.1% to 45.3% between Jan. 2025 and Jan. 2026; Gemini rose from 14.7% to 25.1%, Grok rose from 1.6% to 15.2% — Google, Grok are gaining ground on ChatGPT as the chatbot market expands. — ∙ Paid — OpenAI's rivals are cutting into ChatGPT's lead.

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