It comes down to moats. Does OpenAI have a moat? It's leading the pack, but the competitors always seem to be catching up to it. We don't see network effects with it yet like with social networks, unless OpenAI introduces household robots for everyone or something, builds a leading marketshare in that segment, and the rich data from these household bots is enough training data that one can't replicate with a smaller robot fleet.

And AI is too fundamental of a technology that a "loss leader biggest wallet wins" strategy, used by the likes of Uber, will work.

API access can be restricted. Big part of why Twitter got authwalled was so that AI models can't train from it. Stack overflow added a no AI models clause to their free data dump releases (supposed to be CC licensed), they want to be paid if you use their data for AI models.