Fairgain

AI agents negotiate. A deterministic engine decides which of their deals counts.

Demo

Negotiation, with a hard limit

Two AI agents negotiate.
A deterministic engine
decides what counts.

Each side gets an agent that argues for them and never sees the other side’s limits. Whatever the two agents agree goes to a separate decision engine — deterministic, auditable, and outside any model’s reach — which has to accept before anything is a deal. It can refuse, and it names the exact constraint that stopped it.

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

  1. Fairgain demo revenue

    $16,272.00

    in fees, over 16 closed negotiations

    • Divorce 2 deals $200.00
    • Meat supply 14 deals $16,072.00
    • Tutoring none yet —

    Real runs, real fees — if it were real work. $4.05 of model calls behind them, and nobody was charged.

  2. Two sides, two sets of limits

    buyerwill not go above •••
    supplierwill not go below •••

    Whether they overlap at all is the whole question, and finding out usually takes a week of email.

  3. Each side gets an agent

    buyer’s agentknows the buyer’s limits
    buyer’s agentthe supplier’s limits — never fetched

    Not hidden, not blurred out. The brief is built by whitelisting, so the other side’s numbers are never loaded at all.

  4. The engine can overrule them both

    supplierWITHIN LIMITS
    supplierREFUSED
    • Price times quantity comes to more than the buyer’s budget for the whole order. ORDER_VALUE_ABOVE_CEILING

    Deterministic and auditable, and outside any model’s reach. Whatever the two agents agreed, it has to accept — and it names the constraint that stopped it.

  5. Nothing counts until two people say so

    buyer✓ approved
    supplier✓ approved
    then, and only thenfee charged · contacts revealed

    One approval on its own does nothing. No fee, no introduction, no deal.

  6. Boost: several at once

    supplier A
    supplier B
    supplier C

    One buyer, stated once, against several suppliers at the same time. Every lane is a real negotiation through the same engine, and the board ranks what each one came to. Run a board →

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. 14 deals made $16,072.00 in fees — see them, and replay any one
Pre-lawyer settlement Divorce Two separating spouses working out the shape of a settlement. Invented people, invented children: this is a demonstration of the machinery and not a service, and a line about where the children change hands is held exactly as firmly as a line about money. the nightssupportthe splitthe homehandover 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. 2 deals made $200.00 in fees — see them, and replay any one

Want it for real?

This is a demonstration — nothing here binds anybody. Join the waiting list and we will tell you when the market you are in is live. If you invest, the pre-seed terms are on their own page.

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.