The model and features available to it matters.

o1 says "I’m not aware of a widely recognized or universally known product called “CurrentKey Stats,” so it may not be a mainstream or highly publicized app. There are a few possibilities, though:" and then some guesses.

o3-mini is similar: "I couldn’t find any widely recognized information about an app specifically called CurrentKey Stats. It’s possible that:"

When I turn on its shiny new search capability, it correctly identifies and summarizes the app.

o3-mini-high, search turned off, asks for clarification.

Which means the default free 4o is quietly doing retrieval-augmented generation behind the scenes. I thought o3-mini would search if it didn't know the topic, but I might be misremembering.