Machine Heart

Oct 17, 2026 · Artificial Intelligence

RAVEL: Two Simple Tweaks Double Vision Encoder Evaluation Correlation for MLLMs

Researchers propose RAVEL, a training-free method to evaluate vision encoders for multimodal LLMs by measuring cross-modal nearest-neighbor consistency with stabilized PCA whitening and patch-level matching, achieving 0.85 Spearman correlation across 210 models, outperforming prior methods by 36-101%.