This is fascinating. Trakkr.ai built what they're calling "The AI 500" - basically the S&P 500 but for AI brand visibility. It's the first public benchmark tracking which brands ChatGPT, Claude, Gemini, and Perplexity actually recommend.
https://trakkr.ai/rankings/
They're running 5,000+ real prompts across 500 industries and ranking 15,000+ brands based on how often AI models mention them. The database updates daily and includes model disagreement analysis, which shows when different AIs recommend different brands for the same query.
You can compare any two brands head-to-head to see which one gets recommended more often. This matters because as more people use AI for research and recommendations, brand visibility in AI responses is becoming a real competitive advantage.
If you're running a brand or doing marketing, this is probably worth checking before your competitors figure it out. The gap between AI-visible brands and AI-invisible brands is going to get real.
https://trakkr.ai/rankings/
