Core benchmarks
MMLU (knowledge). GSM8K + MATH (math). HumanEval + MBPP (code). ARC + HellaSwag (reasoning). BBH (BigBench Hard).
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Chat quality
MT-Bench (multi-turn). Chatbot Arena Elo. Judge-based scores. Instruction-follow quality.
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Safety
ToxiGen, TruthfulQA, XSTest (overrefusal), HarmBench. Comprehensive safety picture.