It can be both, of course. Start with process supervision but combine it with… something else. It’s hard to learn how to reason from scratch, but it’s also clearly not doing pure strict imitation learning, because the transcripts & summaries are just way too weird to be any kind of straightforward imitation learning of expert transcripts (or even ones collected from users or the wild).
My best guess is that there was process supervision for capabilities but not for safety. i.e. training to make the CoT useful for solving problems, but not for “policy compliance or user preferences.” This way they make it useful, and they don’t incentivize it to hide dangerous thoughts. I’m not confident about this though.
It can be both, of course. Start with process supervision but combine it with… something else. It’s hard to learn how to reason from scratch, but it’s also clearly not doing pure strict imitation learning, because the transcripts & summaries are just way too weird to be any kind of straightforward imitation learning of expert transcripts (or even ones collected from users or the wild).
Wouldn’t that conflict with the quote? (Though maybe they’re not doing what they’ve implied in the quote)
My best guess is that there was process supervision for capabilities but not for safety. i.e. training to make the CoT useful for solving problems, but not for “policy compliance or user preferences.” This way they make it useful, and they don’t incentivize it to hide dangerous thoughts. I’m not confident about this though.