Why is Google‘s AI so much worse than its competitors?

EDIT: To be very clear, I am referring to the Google AI summaries and not the full Gemini version.

AI being forced into everything is unfortunately part of the current zeitgeist. I, too use ChatGPT maybe once or twice a week, so I‘m not saying it can‘t ever be useful. I also know that hallucinations are a big problem with all AI models, and that you really shouldn’t take any information at face value without double checking sources.

That being said, why is Google‘s AI (in its overviews) significantly worse than ChatGPT or its ilk? Its hallucinations are at a whole nother level, to the point where it’s not even just convincingly wrong, but hilariously so, contradicting itself from one sentence to the next. What’s the difference here?