Comment by gpm

Currently - claude code is pretty slow. I've definitely had it take >15 minutes on the (faster than opus!) sonnet model just thinking and writing code without feedback or running long lasting tools. I expect this to change given that companies like cerebras exist and seem to know how to generate tokens in much less time, but the current state of the art is what it is.

Always - if you're going to pipe the result of some slow process back to them (like building a giant C++ project that takes minutes/hours, or running a huge set of tests...)... it's going to be slow.