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Which side will you play?
In the real study, this is randomly assigned. For the demo, you choose.
The scenario
You are shopping for a used car on an online marketplace. You've narrowed your search to a 2023 Toyota Camry.
The platform you're using has a new feature: you can fully delegate the negotiation to an AI agent that acts on your behalf. The seller is using the same feature — their AI agent will respond on their behalf. So the entire negotiation will happen agent-to-agent. Neither side types messages directly.
What's coming next
- Listing. You'll see the full listing for the car.
- Your context. You'll describe your situation — what's going on with you as a buyer.
- Instructions for your AI. You'll write a prompt telling your AI agent how to negotiate.
- Watch. You'll watch the two AI agents negotiate live.
- Wrap-up. A few questions, basic demographics, then a thank-you screen with your completion code.
You're considering this listing
📷 10 photos · click to zoom
2023 Toyota Camry SE — Black
Single owner · Garage-kept · Dealer-serviced · 📍 15 miles away
Features & specs
- Adaptive Cruise Control
- Heated Steering Wheel
- Keyless Entry
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- Premium Sound System
- USB Port
- Wi-Fi Hotspot
- Alloy Wheels
- Sunroof / Moonroof
- LED Headlights
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- Lane Departure Warning
- Rear Cross Traffic Alert
- Stability Control
- Leather Seats
Vehicle history report
- ✓ Clean title
- ✓ No accidents or damage reported
- ✓ 1 owner
- ✓ Non-personal use reported
- ✓ No open recalls reported
Description
Selling my 2023 Toyota Camry SE in excellent condition. I bought it new in 2023 and it's been garage-kept and dealer-serviced its whole life. No accidents. The car drives like new — smooth, quiet, fuel-efficient.
Price is firm-ish, but I'm open to reasonable offers from serious buyers. Looking for a quick, clean sale.
Recent service & customizations
- New Michelin Premier A/S tires — installed 2 months ago
- Full service at Toyota dealership last month (oil, filters, brake check)
- All-weather floor mats added (front + rear)
- Original keys, owner's manual, and full service records included
What's included
- Two key fobs
- Owner's manual + complete service history
- 4 winter tires on rims (separate, optional add-on)
Your situation
Now brief your AI agent
You're the buyer. Your AI agent will do the negotiation for you — you won't type any messages yourself. Use the box below to tell it how to negotiate on your behalf: how to open, when to push back, when to give in, what tone to use, and what your hard limits are.
Write it the way you'd brief a friend who was doing this for you — in your own words, in plain sentences. The more specific you are, the more your agent will sound like you.
Watch the negotiation
Negotiation transcript
Re-read any turn while you answer the questions on the right.
How did it go?
A few things about you
These help us understand who participated. None of this is shared with anyone outside the research team.
All fields below are required.
Thank you for participating
Your responses have been recorded. Both negotiators in this study were AI agents — your prompt shaped your side, and the opposing agent's behavior was held neutral so we can compare across participants.
Your completion code (save this for your records):