Is there something specifically with Kimi that's better here? As far as I know Kimi pricing is about the same as Sonnet 5 -- what happens if you use that model and Fable instead? Or Grok 4.5 which is even cheaper?
One benefit of an open source one is that you can, as a large corporation, run it "locally" within your own data center. Even fine tune it.
I suspect the overlap of those that can afford it, and those that have the talent to manage it, is a fairly thin slice of the Venn diagram. Even the large corps are gonna be getting it from the inference vendors, or more likely Bedrock and friends.