[r/ML] [R] Beyond Final Answers: CRYSTAL Benchmark for Transparent Multimodal Reasoning Evaluation

Summary

A new benchmark called CRYSTAL has been introduced to evaluate multimodal AI models based on their step-by-step reasoning rather than just final answers. Comprising 6,372 visual questions with verified reasoning, CRYSTAL aims to assess true understanding. Initial findings reveal that many advanced models, including GPT-5, can achieve high accuracy but often fail to demonstrate the underlying reasoning process.

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