The Cross-Provider Visibility Gap: Why AI Systems Disagree and How to Bridge It

The Cross-Provider Visibility Gap: Why AI Systems Disagree and How to Bridge It Let me start with a question: have you ever asked ChatGPT for a recommendation, then tried the same question on Google’s AI and scratched your head at the completely different answers? If you have, you’re not alone. This isn’t a glitch or an odd edge case. Across the prompts we’ve run here at Contxt , AI systems disagree on brand recommendations a whopping 39% of the time . That’s a bigger gap than I expected when we first started digging into this data, and frankly, it’s a bit of a nightmare for businesses trying to stay visible in AI outputs. But why does this happen? And more importantly, how do you fix it? Let’s get into it. What the Data Tells Us About the AI Visibility Gap Across our dataset of 2,361 prompts , we tracked 29 brands being mentioned (or not) in answers from three leading AI systems: ChatGPT, Google’s AI Overview, and Perplexity. The numbers were eye-opening. ChatGPT had a significantly higher overall mention rate at 74.4% , compared to Google’s 43.5% and Perplexity’s 42.7% . That means ChatGPT is much more "generous" in recommending brands compared to its peers. But here’s the kicker: visibility on one system doesn’t guarantee visibility on another. For instance, 39% of prompts yielded conflicting recommendations between ChatGPT and Google AI. A brand might be highly visible on ChatGPT but completely invisible on Google’s answers, or vice versa. Related reading: The Hidden Gap: Why Brands Are Invisible to AI Assistants... . It’s like playing two different games with the same set of rules but wildly different outcomes. Let’s break this down further with two real-world examples from our tracked brands: Iconsys, a manufacturing/industrial automation brand, has a visibility rate of just 6.7% . That’s near-total obscurity. In contrast, Viking Pumps and Red Fern both hit 100% visibility, consistently showing up no matter which platform you query. Our own brand, Contxt, show