The Platonic brain bridge hypothesis: human brain networks as an architectural prior for omni models — Paper

Abstract

We propose the Platonic brain bridge hypothesis: omni models, which process video, audio and text jointly like the brain, converge on brain-like representations, and the correspondence is bidirectional. From model to brain, brain-likeness of seven omni models is stable across participants, and our encoding models on their internal hidden states rank first on the Algonauts 2025 out-of-distribution leaderboard. From brain to model, three contributions follow. Brain-MoE gives seven cortical networks one brain-pretrained expert each and raises held-out accuracy in all 15 model-benchmark pairs by 6.42 percentage points on average. Brain-AVQA builds questions from video clips labelled by the most responsive brain network; the real network-to-expert map exceeds shuffled maps in-domain on all three models. Brain-Scope uses sparse autoencoders to localize the correspondence to a small subset whose removal weakens brain prediction in all three bases tested. Human brain networks are therefore a usable architectural prior for omni models.

Authors 4

Pengfei Zhang, Biao Tian, Xiangang Li, Li Liu

Specification

Official page: arxiv.org/abs/2609.10947
Source:arXiv (Atom API + RSS)T1observed 4 h agohigh
Arxiv announce type: cross
Source:arXiv (Atom API + RSS)T1observed 4 h agohigh
arXiv id: 2609.10947
Source:arXiv (Atom API + RSS)T1observed 4 h agohigh
Categories: q-bio.NC, cs.LG
Source:arXiv (Atom API + RSS)T1observed 4 h agohigh
PDF: arxiv.org/pdf/2609.10947
Source:arXiv (Atom API + RSS)T1observed 4 h agohigh
Primary category: q-bio.NC
Source:arXiv (Atom API + RSS)T1observed 4 h agohigh
Published: 11 Sept 2026
Source:arXiv (Atom API + RSS)T1observed 4 h agohigh

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T19

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4 h ago

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Authors: Pengfei Zhang, Biao Tian, Xiangang Li

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Claim history for Primary category
Value	Valid from → to	Status	Source	Confidence	Extractor
q-bio.NC	11 Sept 2026 21:02 UTC → current	current	arXiv (Atom API + RSS)T1	high	deterministic

Claims are temporal and append-only: a new observation closes the previous claim (valid_to) instead of overwriting it. Conflicting claims from different sources are kept side by side and flagged — never averaged. Methodology →

11 Sept 2026
New paperPaperThe Platonic brain bridge hypothesis: human brain networks as an architectural prior for omni models
New paper: The Platonic brain bridge hypothesis: human brain networks as an architectural prior for omni models
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Source	Document	Type	Tier	Last observed	Snapshots
arXiv (Atom API + RSS)	rss.arxiv.org/rss/cs.LG	feed	T1· Official	2 h ago	1

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