AI answers from ChatGPT, Claude, Gemini, and Perplexity often shift depending...

https://www.pfdbookmark.win/measuring-ai-search-is-a-nightmare-because-answers-are-inherently

AI answers from ChatGPT, Claude, Gemini, and Perplexity often shift depending on your session and location. That’s because each model adapts to new data and geographic context