10个问题问了 
Google AI mode（默认模型） 
ChatGPT Search（默认模型） 
Perplexity（默认模型） 
AI studio grounding with google search（gemini 2.5 pro） 
分别问了10个问题 




#
Question
Primary Skill Being Tested




1
Complex Comparison
“Compare the key economic recovery policies proposed and implemented by the US and the Eurozone in the first 12 months following the start of the COVID-19 pandemic. Focus on fiscal stimulus, cent...