alt Hacker News> But there's a lot of re-inforcement learning afterwards.
That just shifts the distribution of tokens produced. Ultimately they are still just next token predictors.
Like, even "reasoning" models basically work by generating more tokens at inference time, and using them to shift the distribution towards more useful outcomes (in some cases).
They are next token producers. I would only call it a predictor, if it's trained to predict tokens (ie just after pretraining).
Just like humans produce one word after another when they talk, but they don't generally try to imitate other humans.