This is the most direct test of AI invisibility — and most business owners have never run it. Open ChatGPT, Perplexity, or Google AI and type: "What are the best [your service] in [your city]?"
If your business does not appear and your competitors do, AI search engines are actively recommending other businesses to your potential customers right now. Every day this continues, customers who asked that question called a competitor instead of you.
Run this test on all three platforms. They pull from different data sources and may show different results. A business can appear on Gemini (which draws heavily from Google Business Profile) and be completely absent from ChatGPT and Perplexity. Understanding which platforms ignore you tells you exactly where to focus.
Ask ChatGPT, Perplexity, and Google AI: "What are the best [your category] in [your city]?" Screenshot each result. If you are not in the top three on any platform, you have an AI visibility problem.