Zillow

Zillow gives buyers and renters instant access to listings and Zestimates, its AI valuation model that processes millions of data points to estimate home values as conditions change. Zillow shut down its own home-flipping business, Zillow Offers, in 2021 after significantly overpaying for homes based on its own valuation algorithm — a notable and widely cited cautionary tale about trusting an AI pricing model with real capital at stake, even from the company that built it.