HuggingFace offers DeepSeek as one of its models— it's pretty simple to spin up instances under your control.

I'm not sure about OpenRouter but I wouldn't be surprised if they offer a US-based provider of DeepSeek.

For reference, Cursor has their first own light fork of Kimi that they use as their baseline coding and review model.

“Any” is a very high bar Unless laws prevent it, I don’t see why a substantial minority wouldn’t buy services from where they can get them at a similar quality and much lower price.

Together.ai provide many open weights models and as far as I’m are their servers are US based (the company certainly is)

Any IT cost center will send to the lowest bidder. This isn’t intellectual property: it’s annoying shit that is an unwelcome cost of doing business. China might copy our tedious scripts? Will they make a product out of it? Can I buy it and fire my IT staff? Great!

Not everyone using AI is using it to code core value IP.