Poster Sat, Jun 6, 2026 • 3:45 PM – 5:45 PM PDT ExHall A & F

BabyVLM-V2: Toward Developmentally Grounded Pretraining and Benchmarking of Vision Foundation Models

Shengao Wang ⋅ Wenqi Wang ⋅ Zecheng Wang ⋅ Max Whitton ⋅ Michael Wakeham ⋅ Arjun Chandra ⋅ Joey Huang ⋅ Pengyue Zhu ⋅ Helen Chen ⋅ David Li ⋅ Jeffrey Li ⋅ Shawn Li ⋅ Andrew Zagula ⋅ Amy Zhao ⋅ Andrew Zhu ⋅ Sayaka Nakamura ⋅ Yuki Yamamoto ⋅ Jerry Yokono ⋅ Aaron Mueller ⋅ Bryan A. Plummer ⋅ Kate Saenko ⋅ Venkatesh Saligrama ⋅ Boqing Gong

Abstract

Early children's developmental trajectories set up a natural goal for sample-efficient pretraining of vision foundation models. We introduce BabyVLM-V2, a developmentally grounded framework for infant-inspired vision–language modeling that extensively improves upon BabyVLM-V1 through a longitudinal, multifaceted pretraining set, a versatile model, and, most importantly, DevCV Toolbox for cognitive evaluation. The pretraining set maximizes coverage while minimizing curation of a longitudinal, infant-centric audiovisual corpus, yielding video-utterance, image-utterance, and multi-turn conversational data that mirror infant experiences. DevCV Toolbox adapts all vision-related measures of the recently released NIH Baby Toolbox into a benchmark suite of ten multimodal tasks, covering spatial reasoning, memory, and vocabulary understanding aligned with early children's capabilities. Experimental results show that a compact model pretrained from scratch can achieve competitive performance on DevCV Toolbox, outperforming GPT-4o on some tasks. We hope the principled, unified BabyVLM-V2 framework will accelerate research in developmentally plausible pretraining of vision foundation models.