I didn't mean 'no ROI', clearly AI is a productivity boost.
For the AI companies to IPO at the money they want, they have to promise that they are going to be worth many multiples more of that value.
But currently they are spending hundreds of billions and despite this their models are not light years ahead of each other, or of the companies with much lower budgets and compute power.
What they claim they can offer in future profits is subject to considerable debate.
It's in the interests of VC's and their underlying rich investors to hype it ip, IPO and bank the cold hard cash.