I would imagine Fable is really good at writing Trainium NKI kernels. Ant probably RLed it heavy to write Trainium code.
Trainium is actually pretty solid hardware. You basically just have to write everything in Trainium ISA and you get super good performance. I think more advanced coding agents will make Trainium even better. $AMZN
compute situation is crazy
i have an opencode session doing work with trainium and it had to make a reservation for capacity on saturday
so it scheduled a task to wake itself up then so it can continue working