If you do the math on best-case costs for some of Google's AI projects they've been spending tens to hundreds of millions worth of compute on things like traini

If you do the math on best-case costs for some of Google's AI projects they've been spending tens to hundreds of millions worth of compute on things like training StarCraft bots, so I wouldn't be surprised if the industry as a whole is throwing $50b USD worth of compute at various tasks every year already. If you're a company like Amazon or Google using your own fleet for it you're not actually spending that much money, of course...