Side-by-side comparison of AI visibility scores, market position, and capabilities
London digital CBT app for tinnitus with DEFINE Trial evidence showing 86% benefit in one month; £2.8M seed competing with Widex and ReSound for 750M global tinnitus sufferers needing accessible specialist care.
Oto is a London-based digital health company providing clinically validated, app-based CBT (cognitive behavioral therapy) treatment for tinnitus — the persistent ringing, buzzing, or hissing in the ears that affects 15% of the global population (750 million+ people) with no pharmaceutical cure — delivering structured therapeutic programs designed by tinnitus specialists that help patients manage and reduce tinnitus distress through evidence-based psychological and sound therapy techniques. Founded and backed with £2.8 million in seed funding raised in 2022, Oto demonstrated in the DEFINE Trial (the largest randomized controlled trial for any digital tinnitus program) that 86% of users experience measurable benefits within one month of the program.
AI assistant by xAI (Elon Musk); Grok 3 topped reasoning benchmarks in Feb 2025; 1M+ paying subscribers in week one; real-time X post access; distributed via X Premium; xAI valued at $24B.
Grok is the AI assistant developed by xAI, Elon Musk's AI company founded in 2023, and distributed primarily through X (formerly Twitter). Grok launched in November 2023 as an X Premium perk, with the notable differentiator of real-time access to X posts and a less restricted, more direct conversational style. Grok 3, released in February 2025, achieved top scores on the AIME math reasoning benchmark and ARC-AGI test, briefly positioning xAI as a frontier model lab.
Monitor how your brand performs across ChatGPT, Gemini, Perplexity, Claude, and Grok daily.