That is a difficult question I am not qualified to answer, but Mythos 5 was export controlled for a brief time due to its cybersecurity capability and implications to national security, so for cybersecurity "as capable as Mythos 5" seems to be a good baseline. I wouldn't know for biosecurity though.
UK AISI preliminary evaluation suggests Kimi K3 is not capable enough for cybersecurity in this sense.
Is Kimi K3 capable? It's already out and being run by US companies on US hardware in US data centers.
https://huggingface.co/moonshotai/Kimi-K3