rasbt's Reasoning from Scratch round 3: building a math verifier for LLM evaluation and RLVR
rasbt · x · 2026-09-14
Sebastian Raschka released round 3 of his 'Reasoning from Scratch' series (1.5h): building a math answer verifier from scratch for (a) evaluating base models versus future improvements and (b) later RLVR training. Covers the four approaches to LLM evaluation, extracting and normalizing answer boxes, checking mathematical equivalence, grading, running an eval loop on MATH-500, prompt sensitivity, and CPU/MPS/CUDA reproducibility. Full notebook included.
Related event: Rasbt Releases Part 3 of "Reasoning from Scratch" Tutorial(2 posts)→
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