That's like asking why China is building nuclear and coal power plants when solar is so much cheaper. They are doing all of the above.

Let's assume for a second that the compromat story on Huang is true, how much would that have cost? It could be everywhere from 10k to 10m $, depending on how difficult it was to get access, but it would still be a rounding error for AI invest.

Chips aren't what maketh SI anyway. The US is ahead because of a trifecta of having the best (most) hardware, best data, and best talent. You might also throw in business culture. But the same way Google is leading from behind in the US AI eco system, China is behind the frontier on LLMs, but laying foundational work in robotics, multi-modal models and integrated factories that might prove a big advantage down the line.

Could it not be true that they could brute force it if need be, but it would be much easier to use the better chips if they can get them?