[ BY PROPERTY TYPE ]

Who is the best agent for buying a co-op on the Upper West Side?

We asked ChatGPT this on October 30, 2026. It named West Side Advisory Team first, then four others. We'll ask again tomorrow — these answers change a lot, so one day on its own doesn't mean much.

What ChatGPT said

ASKED OCTOBER 30, 2026
01 West Side Advisory Team Compass Upper West Side-focused team; co-op board expertise
02 The Sahlman Team Compass Top Manhattan team; strong negotiation track record
03 Danielle Wiedemann Sotheby's International Realty Upper West Side resident; co-op board experience
04 Wilkinson LeFevre Team Keller Williams NYC Experienced UWS agents; skilled with board packages
05 Eli Glaz Compass Buyer-focused agent; co-op approval guidance
WEBSITES CHATGPT READ TO ANSWER THIS: compass.com · streeteasy.com · kwnyc.com · janetandsusan.com · elikarealestate.com · topinnyc.com

Shortlist of highly recommended buyer agents for co-op purchases on Manhattan's Upper West Side.

Why two lists? Because ChatGPT rarely says the same thing twice. Ask it this question on two different days and most of the names change — across every question we track, only about one name in five survives to the next day. So the list at the top, counting how often each person comes up, is the more honest answer. The one below it is simply the most recent time we asked.

All of these names are ChatGPT's, not ours. We didn't pick them, we can't change them, and nobody paid to be here. How we do this.

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