The home is a SFR detached home and not a detached condo. The listing is a broker who does not do much business so safe to assume that it was an input error on their part.
In the private remarks in the MLS state that the buyer will pay both the listing agent and buyer agent commission (see below)...
"Buyer to pay a buyers premium of 5% to be included to cover sales commission in offer please read and understand before submitting offers. Buyer must be pre qualified by a reputable lender, show proof of funds and credit scores. All offers must be submitted to Hugh Elder Broker to:
hughreosales@gmail.com if you have any questions please call Hugh Elder 714-296-6265. Lock Box on property no showings until open house 09/23/2023 Buyer to verify sq footage, room sizes etc. 4th bedroom is loft/office also. 4 bedroom on Real Tax it is the largest floor plan but owner chose loft but has area for closet."
Typically the listing commission is outlined in the listing agreement but since the buyer is now asked to pay the commission, the buyer can negotiate to pay a lower total commission (whoever pays it can negotiate it). I have seen this a few times in my 16+ year career but it is very rare that the buyer will pay all the commissions. That being said, they priced this home low to get multiple offers and for it to sell fast. If the commission was paid by the seller, I believe this home would easily sell for $1.5m+.