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먼저 물어보세요. 계정은 그다음에 정해도 됩니다.
Evaluating a research tool by reading its marketing is close to useless, because every one of them claims the same things. The only test that tells you anything is asking a question from your own field where you already know the answer, and seeing whether what comes back is right and whether the sources are real. That takes two minutes and should not require a form. Creating an account first inverts the order — you commit before you know, and the friction is doing work that the product should be doing. Ask first; the account is a decision you can make afterwards with better information.
What should I ask to evaluate a research tool?
A question from your own field where you know the literature. Right answers to questions you cannot check tell you nothing.
What should I check in the response?
Whether the sources exist and say what the answer claims. That single check separates most tools from each other.
Why does signing up first matter?
It asks you to commit before you know whether it works, which is the wrong order for a decision you can make in two minutes.