On a quick skim, I didn't see an update on this claim:
Our current estimates put monitoring overhead at roughly 20% of the inference compute being monitored, though the cost varies substantially across training and evaluation workloads. We’ll share more details about this system in a forthcoming blog post.
I'm somewhat confused about how OpenAI could be spending so much on monitoring.
Huh, I wonder if this is: "We monitor all our inference with a weaker model, and that weaker model consumes roughly ~20% of the cost of all inference compute."