AI bot gives customer 80% discount, supplier can't deliver (opens in new tab)

There's generally protections in many jurisdictions against having to honor contracts that are based on obvious errors that should have been obvious to the other party however ("too good to be true"), and other protections against various kinds of fraud - which may also apply here, since this was clearly not done in good faith.

If you have an AI chatbot on your website, I highly recommend communicating to the user clearly that nothing it says constitutes an offer, contract, etc, whatever it may say after. As a company you could be in a legally binding contracts merely if someone could reasonably believe they entered into a contract with you. Claiming that it was a mistake or that your employee/chatbot messed up may not help. Do not bury the disclaimer in some fine-print either.

Or just remove the chatbot. Generally they mainly piss people off rather than being useful.

If you walk into any retail store in the US, the price on the shelf is legally binding. If you forgot to update the shelf tag, too bad, you are now obligated to sell at the old price.

If you advertise a price or discount, you are required to honor such. Advertising fictitious prices or discounts is an illegal scam.

Likewise, if you have some text generator on your site that gives out prices and promo codes, that's your problem. A customer insisting you honor that is not a scammer, they are exercising their legal right to demand you honor your own obligations to sell products at the price you advertised.

So, this is a scammy business trying to get out of their legal obligations to a customer who is completely in the right.

Lesson: don't put random text machines in your marketing pipeline in a way that they can write checks your ass can't cash.