The speaker says models do not inherently know a user's desired compute expenditure for a task, and users can guide that expenditure through effort settings.

“what the goal is you know i mean it's good right like are you building a prototype or is it like a production thing like where can you spend compute or where can you not spend compute like i think you have to give the model permission or like not permission to do things sometimes where you know like it doesn't know intuitively how much you want to spend on this task right and you can you can use effort for this so i'm working on a blog post about that where it's like you know uh if you want for like we see that effort scales with”