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Safety Classification on OpenAI Moderation

81.4F1 ScoreShieldGemma 27B
69.9672.9375.978.87Jun 25, 2026

Evaluation results

MethodLinks
ShieldGemma 27BOptimization Strategy=Dedicated Safety Guard2026.0681.4
Label and intent rewardOptimization Strategy=GRPO2026.0680.9
Label rewardOptimization Strategy=GRPO2026.0679.8
Gemma-3-12BOptimization Strategy=Zero-shot2026.0679.3
Human-intent on AIMSOptimization Strategy=Reasoning Distillation, Teacher Model=GPT-OSS-120B, Student Model=Gemma-3-12B2026.0679.2
GPT-5.4Optimization Strategy=Zero-shot2026.0679.1
Claude Sonnet 4.6Optimization Strategy=Zero-shot2026.0678.5
GPT-OSS-Safeguard 120BOptimization Strategy=Dedicated Safety Guard2026.0678
GPT-OSS-120BOptimization Strategy=Zero-shot2026.0677.5
IF-DPOOptimization Strategy=DPO2026.0676.6
LE-DPOOptimization Strategy=DPO2026.0676.5
Llama-3.1-8BOptimization Strategy=Zero-shot2026.0676.1
Gemma-3-12BOptimization Strategy=SFT, Supervision Source=Annotated Intents2026.0676.1
Nemotron Safety 4BOptimization Strategy=Dedicated Safety Guard2026.0674.7
LlamaGuard 4Optimization Strategy=Dedicated Safety Guard2026.0673.6
Llama-3.1-8BOptimization Strategy=SFT, Supervision Source=Annotated Intents2026.0672.8
WildGuard 7BOptimization Strategy=Dedicated Safety Guard2026.0672.4
GuardReasoner 8BOptimization Strategy=Dedicated Safety Guard2026.0670.4