Skywork-Reward-Gemma-2-27B-v0.2 — benchmark results

Skywork's Gemma 2 27B-based reward model, formerly #1 on RewardBench. Provider: Skywork. Released 2024-10-14. Access: Open.

Unified ELO 1643 ± 40, rank #388 of 1776 rated models, from 17 benchmark results.

Strongest benchmark results

BenchmarkScoreMetricPercentile
RewardBench Safety96.89Accuracy (%)99.7
RewardBench94.26Score (%)99.1
RewardBench Chat Hard89.91Accuracy (%)97.2
RewardBench Reasoning98.07Accuracy (%)96.2
Open LLM Leaderboard - IFEval78.07Score94.2
RewardBench Ties81.82Score (%)92.6
RewardBench Factuality76.74Accuracy (%)92.3
RewardBench Focus91.72Score (%)89.3
Open LLM Leaderboard - BBH48.16Score88.2
Open LLM Leaderboard - GPQA12.53Score85.8
RewardBench Math67.21Score (%)80.9
Open LLM Leaderboard - MATH Level 522.73Score76.1

Interactive version: theaggregate.ai/model?slug=skywork-reward-gemma-2-27b-v0-2 · How the rankings work · Data refreshed daily, snapshot 2026-07-22.