AIBearisharXiv – CS AI · Mar 176/10
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BrainBench: Exposing the Commonsense Reasoning Gap in Large Language Models
Researchers introduced BrainBench, a new benchmark revealing significant gaps in commonsense reasoning among leading LLMs. Even the best model (Claude Opus 4.6) achieved only 80.3% accuracy on 100 brainteaser questions, while GPT-4o scored just 39.7%, exposing fundamental reasoning deficits across frontier AI models.
🧠 GPT-4🧠 Claude🧠 Opus