Companies must ensure their AI models are free of third-party IP violations and provide indemnities in their terms of service. In regards to any 3rd party IP used in training our AI, Google takes best effort to keep training data free and clear of IP, with tools like citation checkers to block known sources of IP. Google Cloud provides indemnity in terms of service for customers on any third-party claims arising from its training data.
There are also a lot of ethical issues with AI in search, and because Google has worked on this for so long, they have given a lot of thought about the responsible way to do this. They look at toxicity in content and content bias, both from the training data set and output and ensure this is reviewed regularly and best efforts are continuously applied.