AI5 min read
Test-Time Scaling
CoBa routing matches best-of-16 voting with 58.9% fewer tokens
CoBa, a compute-balanced routing policy from a new arXiv paper, matches best-of-16 majority voting within 0.01 points while cutting parameter-weighted tokens by 58.9%. On 3,129 evaluations across MATH-500, AIME, and AMC, it also beats single-sample decoding outright, though a small best-of-16 edge remains when budget is no object.
2026-08-19