Yes technically you can go to prison for securities fraud, and everything could be securities fraud, if you have multiple share holders and play in that sandbox.
A small random startup is unlikely to play in the securities sandbox until they have enough resources to hire enough lawyers to keep themselves out of prison and the fines "reasonable"(i.e. not enough to incentivize actually doing something about the fine being imposed other than to at least temporarily stop doing the action).
When was the last time securities fraud ended in jail time by any S&P 500 company? My quick web search returned no instances ever(but I could be wrong).
Sure - but that's just, to the extent of our knowledge, regulations working as intended.
My point here is that OP's startup won't be able to compete with incumbents for enterprise money, and since the incumbents already provide this kind of service cheaply and reliably for customers of any size, all while handling applicable security concerns, OP's startup won't be able to compete with them for smaller customers either.
FWIW, I think one possible hook would be to package up "training and deploying model on site" into a product - because after Azure, GCP and AWS, the next set of players best-positioned to make use of cheap frontier model training are... the very enterprise customers who would buy from aforementioned cloud providers instead of doing it themselves. Simplifying internal deployments could convince at least some of them to pay you instead of the Big Cloud.
A small random startup is unlikely to play in the securities sandbox until they have enough resources to hire enough lawyers to keep themselves out of prison and the fines "reasonable"(i.e. not enough to incentivize actually doing something about the fine being imposed other than to at least temporarily stop doing the action).
When was the last time securities fraud ended in jail time by any S&P 500 company? My quick web search returned no instances ever(but I could be wrong).