
Good Memory Has ECC: Evaluating the Memory of Vision-Language Models Beyond Accuracy
Preprint, 2026Shmuel Berman, Jia Deng
ECCBench evaluates memory beyond raw accuracy along three axes: efficiency (the FLOPs needed to answer from memory), compression (whether compressible inputs are remembered better), and calibration (whether a system abstains when it is uncertain). Pretrained VLMs compress over text but not video, and are poorly calibrated on both.



