Supposedly Fable 5.1 is better, but I haven't tried it yet. I've run into the same thing with mundane work that is barely bio/cyber adjacent.
Re: Chinese models, even if the model itself isn't censored, some of the big model providers have guardrails now that you can't exceed, which somewhat defeats the purpose.
"Uncensored" means "weights modified to remove refusals". Abliterated. Providers do not serve such models, at least not frontier-grade. You have to run the weights yourself. For Kimi K3, this is about $60/hour for hardware rental. But you can have about 100 sessions simultaneously.
And yes, Fable 5.1 has the same refusal rate, and significantly nerfed reasoning.