Maybe the correct way of addressing this problem is by using data sources that won't make others sue you, rather than hiding what data sources you're using.
You seem to be unfamiliar with the mantra of silicon valley.
'The Dark Side Of The Force Is A Pathway To Many Abilities Some Consider To Be Unnatural'
Jedi won't believe this one simple trick
Why should they be? It's a French startup.
Correct in what way? Not correct if you want the best performing model. And if it doesn't outperform the current best model nobody will care about you. For a company like Mistral that could be the end for them.
I'm not saying it uses books3, it might not. I'm just saying why it might make sense to risk it.
Nah. Copyright law isn't compatible with small startups and independent developers being able to compete with megacorps in AI. It's unironically better to just ignore it.