Fairgain

Two agents negotiate. A check written in ordinary code can refuse any deal they reach.

Demo

Negotiation, with a hard limit

Two AI agents negotiate.
Ordinary code decides
whether it counts.

Each side gets an agent that argues for them and never sees the other side’s limits. Whatever the two agents agree, a separate check — plain deterministic code, no AI in it — has to accept before anything is a deal. It can refuse, and it says exactly why.

Pick a demo below. You play both sides, and you can watch the check overrule the agents in real time.

Choose a demo

Company ↔ supplier Meat supply A New Jersey meat-product manufacturer buying beef trim from a wholesale supplier. Price is per kilogram, and the budget is for the whole load — which is not the same constraint. unit pricequantitycold chainshelf lifeUSDA / HACCPpayment terms Two people, two machines You take one side, send the other a link. Neither of you sees the other's limits. Play both sides yourself One browser, one visitor, both sets of requirements. 1 deal made USD 1,200.00 in fees — see them, and replay any one
Pre-lawyer settlement Divorce Two separating spouses working out a settlement before either instructs a lawyer. Designed with a family-law attorney, with coercion screening. asset splitcustody schedulesupportthe family home In development

How one run works

  1. 1You write both sides in plain language, in your own words.
  2. 2The system reads it back as hard limits, and you confirm nothing was invented.
  3. 3Two agents negotiate from separate briefs. Neither is shown the other’s limits.
  4. 4The check rules on every offer before it counts, and names the reason when it refuses.