Notes on agentic research.

Six AIs, one question: which ones earn the word 'research'?

We asked the same question to Google AI Overview, Google AI Mode, Perplexity, ChatGPT 5.5 Thinking, ChatGPT Agent, and our own engine. Then we audited our own answer against its sources — and found one mistake. Here's what we learned about the gap between an answer and a defensible answer.