Amazon recently annouced their investment in Anthropic as well. Two, of the largest ad providers on the planet. Invest in the competition so you can have "input" into various aspects of the company, all the while profitting on any sucess.
I generally agree with this sentiment, but Anthropic has agency and have deemed it acceptable to grant these companies some control.
There may be some interest in having access to Google’s machine learning hardware as well. What we don’t know publicly is the extent of any deals these companies have to share technology and infrastructure. Google is one of the only hyperscalers to have succeeded in building its own ML hardware. That’s a key asset.