Definition
Plain language
A simpler predecessor to EDRM that decides reasoning routing from a single trend metric.
As stated in the literature
A prior chain-of-thought routing method using a single early-decoding entropy trend statistic, generalized by EDRM into a three-descriptor framework.
Why it matters: It provides a lightweight baseline for deciding when extra reasoning is worth the compute, which more recent methods build on with richer signals.
For example, Token Signature might route a problem to extended reasoning purely based on whether the model's early-token uncertainty is trending upward.
Heard on the show
“Token Signature, I think.”Episode 077 — Reading a Model's Confidence Curve to Decide When Chain-of-Thought Is Worth It