to be sure

Developers need to be sure they have reliable data to train the AI and then ensure the system can learn what the right answers are.

District leaders have frequently been circumspect in their words about the Trump administration — critical, to be sure, but somewhat careful.

Donald Trump, to be sure, neither knows nor cares whether his allegations have any basis in reality.

There’s considerable variety, to be sure, in how quickly and ferociously they take up arms, and whether they are volunteer hoodlums or highly organized military vets.

This means it's important to minimize harm, and to take a precautionary approach, doing our best to avoid things that might cause harm even we don't have enough evidence to be sure.