>They discovered that appending dummy tokens (ignored during both training and inference) improves performance somehow. Don’t confuse their guess as to why this might be happening with actual understanding.
More tokens is more compute time for the model to utilize, that is completely true.
What they guess is that the model can utilize the extra compute for better predictions even if there's no extra information to accompany this extra "thinking time".
Yes, more tokens means doing more compute, that much is true. The question is whether this extra compute helps or hurts. This question is yet to be answered, as far as I know. I tend to make my GPT-4 questions quite verbose, hoping it helps.
This is completely orthogonal to CoT, which is simply a better prompt - it probably causes some sort of better pattern matching (again very poorly understood).
>The question is whether this extra compute helps or hurts.
I've linked 2 papers now that show very clearly the extra compute helps. I honestly don't understand what else it is you're looking for.
>This is completely orthogonal to CoT, which is simply a better prompt - it probably causes some sort of better pattern matching (again very poorly understood).
That paper specifically dives in on the effect of the length of the CoT prompt. It makes little sense to say - "oh it's just the better prompt" when Cot prompts with more tokens perform better than the shorter ones even when the shorter ones contain the same information.
There is also the clear correlation with task difficulty and length.
The Impact of Reasoning Step Length on Large Language Models - https://arxiv.org/abs/2401.04925
>They discovered that appending dummy tokens (ignored during both training and inference) improves performance somehow. Don’t confuse their guess as to why this might be happening with actual understanding.
More tokens is more compute time for the model to utilize, that is completely true.
What they guess is that the model can utilize the extra compute for better predictions even if there's no extra information to accompany this extra "thinking time".