Thanks! And yes, so our pathfinder agents utilize Sonnet 4's precise coordinate generation capabilities. You give it a screenshot, give it a task, and it can output exact coordinates of where to click on an input field, for example.

And yes we've found the computer use models are quite reliable.

Great questions on scale: the whole way we designed our engine is that in the happy path, we actually use very little LLMs. The agent runs deterministically, only checking at various critical spots if anomalies occurred (if it does, we fallback to computer use to take it home). If not, our system can complete an entire task end to end, on the order of less than $0.0001.

So it's a hybrid system at the end of the day. This results in really low costs at scale, as well as speed and reliability improvements (since in the happy path, we run exactly what has worked before).