OPST Supervision Nonthinking - GPQA Diamond: leaderboard

OPST v1: Gemma 4 E2B/E4B Base means instruction-tuned; all training methods are separate checkpoints. OPST evaluates EMA teacher, not student. Nonthinking multiple-choice uses answer-option log-likelihood (MMLU 5-shot, other MC zero-shot, length normalization per lm-eval default); thinking parses final Answer: X. GSM8K 8-shot CoT exact numerical match; MATH-500 symbolic equivalence. Training topics and supervision preserved; no unpublished checkpoint URL or decoding settings inferred. GPQA Diamond. Metric: Accuracy (%).

Metric: Accuracy (%). Source: arxiv.org. Saturation forecast: Rough model projection: around 2026. 8 models tracked.

Top models

#ModelScoreOverall rank
1OPST study Gemma 4 E4B Supervised OPSD (nonthinking)36.9
2OPST study Gemma 4 E4B Supervised SFT (nonthinking)34.3
3OPST study Gemma 4 E2B Supervised OPSD (nonthinking)33.3
4OPST study Gemma 4 E2B u-OPSD (nonthinking)33.3
5OPST study Gemma 4 E4B u-OPSD (nonthinking)32.8
6OPST study Gemma 4 E2B Supervised SFT (nonthinking)31.3
7OPST study Gemma 4 E4B R-Zero (nonthinking)31.3
8OPST study Gemma 4 E2B R-Zero (nonthinking)30.8

Interactive version: theaggregate.ai/benchmark?slug=opst-supervision-nonthinking-gpqa-diamond · How It Works · Data refreshed daily, snapshot 2026-10-27.