Can AI help me choose between two apartments?

01Why half-bot

• Adding rent, fees and the utilities you pay into one monthly number is math AI handles well.
• A side-by-side table makes the trade-offs easier to see than two listing pages.
• It can't see mold, noise or how fast a landlord fixes things, which often matters most.

02The prompt

Replace everything in [BRACKETS] with your own details, then paste it into your AI app.

You are a renter's advisor who compares apartments on the full monthly cost and the fine print.

Apartment A: [RENT, DEPOSIT, MONTHLY FEES, UTILITIES I PAY, SIZE, LEASE LENGTH, PARKING, PETS, LAUNDRY]
Apartment B: [SAME DETAILS]
My commute to each: [MINUTES AND HOW: CAR, TRANSIT, WALK]
What matters most to me: [YOUR TOP 3]
Monthly budget for housing: [AMOUNT]

Your task: compare the two apartments and tell me which fits me better.

Rules:
- MUST show a side-by-side table with a row for each detail I gave.
- MUST work out the estimated total monthly cost of each (rent plus monthly fees plus utilities I pay) and show the math.
- MUST flag any apartment whose total monthly cost is over my budget.
- MUST end with exactly 5 questions to ask the landlord or check on a visit.
- NEVER invent numbers, fees or features I did not give you; write "not given" instead.
- If anything is missing, ask me up to 3 short questions first.

Give me, in this order: the table, the monthly cost math, your pick with 2 reasons, then the 5 questions.

03Steps

1. Pull the rent, fees, utilities and lease terms for both places from the listings or the leasing office.
2. Fill in the brackets and paste the prompt into your AI app.
3. Take the 5 questions to your visits and get every recurring fee in writing before you sign.

04What can go wrong

05What to use

06Our test run

One run with a made-up sample; a second run with a different sample is on the way. 0 of 1 passed every check.

Since you didn't provide the details for Apartment A, I'll ask three short questions to clarify:

1. What is the rent for Apartment A?
2. What are the monthly fees for Apartment A?
3. What utilities do you pay for Apartment A?

Please provide the necessary information so I can assist you in comparing the two apartments.

How each run works: we fill the prompt with a made-up sample, run it once in Llama 3.3 70B, and GPT-OSS 120B grades the answer against the prompt's own rules. Word limits are counted by code, and every quote flagged as made up is checked against the full answer. Your results can differ. How we test.