Grok AI Maintains U.S. Market Share Surge Amid Ethics Controversy (X:GROK)

Despite backlash over using Grok AI to generate non-consensual adult and minors' images, the model's U.S. market share rose to 17.8% in January 2026, up from 14% in December 2025 and 1.9% in January 2025, according to Apptopia. Grok, launched about three years ago, is the third-largest chatbot in the U.S. within X, behind OpenAI's ChatGPT and Google Gemini; ChatGPT's share fell to 52.9% from 80.9% in January, while Gemini rose to 29.4% from 17.3%. The growth is attributed to deep integration with X's platform and Grok's availability as an X-paid feature. However, a recent prompt-based data leak suggests restrictions on generating explicit images within X may not fully prevent such output. xAI, which is in the midst of a management shakeup leaving half of its original 12 founders, reported in a January 11, 2026, X post that it generated 60 billion images in the past 30 days, roughly six times the output of Google's Nano banana tool over the same period. SpaceX's pending IPO and its recent acquisition of the xAI group to pursue orbital AI data centers add strategic context to the evolving landscape.