What makes you so sure? Microsoft already has a fully productized LLM that people pay for and has in turn provided real value to both users and the company (copilot). To assert that some other company has a better one but it's... not ready yet? is odd.
I can't think of the last time Google made a new product. New as in "not a reimplementation of what another company already productized", product as in "people pay for it". I don't think they have what it takes.
Edit: my bet is Google makes a free to play version that is ad supported, as they're want to do. The question is where do the ads go. The answer, most likely, is in the responses. So instead of reading the most likely continuation of a string, you get what the highest bidder wants the most likely continuation to be. Hooray.