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About this paper

Minki Kang, Jongwon Jeong, Jaewoong Cho

The paper presents T1, a method that helps small language models verify candidate answers during test-time search. T1 uses tools such as code execution to check calculations before a reward model ranks candidates. On MATH500, adding ToolV raises weighted Best-of-N accuracy for a 1B model at 64 candidates from 47.4% to 53.2%, but tool checks can reject correct answers.

Summary by alphaXiv.

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