It is absolutely clear and unambiguous. "DeekSeek" can only mean the corporate entity "Hangzhou DeepSeek Artificial Intelligence Co., Ltd (DeepSeek)" and so there is no doubt at all about what an "implementation" means in this context.
An implementation must be a third party product that is using a product provided by the DeepSeek corporate entity.
> An implementation must be a third party product that is using a product provided by the DeepSeek corporate entity.
That is not clear at all. Are open weights a "product"? The discussion of mobile app vulnerabilities treats the (freely provided, openly available) mobile app as a product. And the order is equally clear that it covers "products and services" from DeepSeek-affiliated corporate entities as well as "the DeepSeek corporate entity" itself.
I don't claim to have a definite answer; I think the order is awkwardly worded and maybe not fully developed. The footnotes I mentioned prohibit (all) procurements involving third-party "DeepSeek implementations"; that implies that a first-party (US Government) "DeepSeek implementation" would be allowed. Maybe that is intended, maybe it is not.
Even if you are a lawyer or someone who studied law, you’re still not a judge and it really isn’t clear how things will land in an actual court of law.
I don’t think there’s any direct precedent here, so maybe lawyers would need to get creative and find other references from past cases that might somewhat apply and try to convince the judge.