You have to be rather naive if you don't think these companies don't simply train on your prompts with or without your consent. They literally scrape everything - legal or not - and claim its fair use to train on, including straight piracy
The idea that they'll steal from everyone except you is just wishful thinking
If you have an enterprise contract with them, the legal protections for the consumer is much higher… is what I’ve been told anyway
Pinky-promises, embarrassing. I'd point to tinfoil.sh. I'm not a shill for tinfoil, I haven't even used it or looked past its homepage really, but if we are able to legitimately secure privacy, then training data questions are moot (and the market for training data would probably shift/expose).
It would be catastrohic for any of the big labs if it came out that they were training on what was sold as private.
I get this cynical conspiratorial energy, it fits the internet well, but I can assure you most people with even mild business sense would be intensely opposed to this idea. Well, except maybe Zuckerburg, but they don't really do enterprise anyway.
This is why these companies paying subscriptions shoveling everything into Claude thinking "oh, they're not training on our stuff" is hilarious to me. Of course they are. They probably are extra super-duper sure not to have Claude admit to that in any way, but there's no way they're giving up training on the sum total of both open and closed source code out there.