1) Push for regulations around data provenance. If you train on anything, you have to prove that you had the rights to train on it. This would kill all but the largest providers in the USA, though China would still pose a problem. You could work around that bit by making businesses and consumers liable for usage of models that don't have proof of provenance.

2) If you had some secret algorithm that substantially outperformed everyone, you could win if you prevented leakage. This runs into the issue that two people can keep a secret, but three cannot. Eventually it'll leak.

3) Keep costs exceptionally low, sell at cost (or for free), and flood the market with that, which you use to enhance other revenue streams and make it unprofitable for other companies to compete and unappealing as a target for investors. To do this, you have to be a large company with existing revenue streams, highly efficient infrastructure, piles of money to burn while competitors burn through their smaller piles of money, and the ability to get something of value from giving something out for free.