Scaling laws show two patterns: smooth loss curves as models get bigger, but also sudden jumps in new abilities that loss alone doesn't capture. You need specific tests to catch when a model suddenly becomes reliable at something it couldn't do before.
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There's some really interesting graphs in the original scaling law papers. As you add in more compute and data, what's called loss, aka the loss from next token prediction, goes down. And so it's a very smooth linear curve of like the models get more intelligent as you scale them up. What's actually also interesting in that paper is there are these like very discontinuous emergent capabilities jump. So the models go from 1 1 being a thing that it can't calculate to a thing that it could reliably calculate. And so these emerging capabilities, not necessarily everyone knows the exact moment, like you need the evals to be able to assess that, has actually always been a part of how this technology works.