There is no AI competition against a company that has Tensor Processing Units among the absolutely incomprehensible data store that Google has amassed.... Especially if you are not some world class mathematician or computer scientist. The best you can hope for is to be acquired if you are in the ML/AI space as a stand-alone entity. In most cases they can probably safely ignore the bulk of AI startups.
Also, those TPU's are available for rent.
Nice that TPU's are available for rent, but to what end? If I run something truly innovative on their hardware (TPU), with their software platform(Tensor)...is that actually innovation, will they have the means to just copy it? How do I compete with that?
As always you want to be careful about dependencies, but that doesn't mean rewriting everything.
I use chrome and little snitch is always telling on it. It calls home so much that I have just given up in order to have a decent experience and gave it full connection rights. I don't know how much of the browser Chrome owns, but I guess it is not insignificant. That is a lot of data that I will never have access to... let alone for my family nor on at Google scale.
Netflix uses AWS and competes with Amazon Prime... I get it. I do think that no one knows the whole story.
Getting back to OP... it has to be damn tiring/frustrating to even contemplate competing in AI/ML space with these big mega corps. I simply would not, that ship has sailed.
By the time they copy you, you're already big. I don't really see the problem as long as the tech companies don't hoard the information and spread the knowledge - which they are doing with initiatives like OpenAI and many more.
The big question is, what happens when they invent AI that builds its own programs and exponentially accelerates? Who needs startups at all then?
They not only have custom silicon (TPU), they have the software too. Do you have extraordinary insight|foresight|genius or have you discovered/developed a major breakthrough in AI/ML? If not, good luck competing with these companies. It is a resource problem at this stage, as consolidation happened and there is no going back.