Depending on the company, you may be interviewing with many people.
Only the hiring manager is in a position to discuss compensation, the other interviewers will likely be your eventual team members or project leads.
If they give you a range, say good to better, set your expectation that when an offer is presented it will probably be the good number, not the better number.
So if good isn't good enough, be prepared to say "no" (which can be hard to do!), and politely turn down the offer.
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