Mihir

predoc research fellow @BCMHouston | prev @Yale

[Mihir @mihirneal]

Excited to share CortexMAE, a family of fMRI foundation models.

We show that our fMRI foundation models scale predictably with data and compute, following clear power-law behavior in one of the most comprehensive scaling studies in neuroimaging.

Our models also achieve SOTA performance in decoding individuals’ dynamic mental states.

[Sophont @SophontAI]

NEW RELEASE:

Today we're releasing CortexMAE: a family of fMRI foundation models trained on 2.1K hours of open fMRI data.

We're also releasing Brainmarks: an open benchmark suite for evaluating fMRI foundation models.

Full paper is on arXiv (accepted to ICML 2026)

A thread:

[Mihir @mihirneal]

@BRFCJohn come visit Texas

[Mihir @mihirneal]

@elliotarledge @hu_yifei it's the answer to the universe

[Mihir @mihirneal]

@shivon not Starshot haha

[Mihir @mihirneal]

@isaiah_p_taylor AZ-5?! LFG

[Mihir @mihirneal]

@gabriel1 It is worse ngl

[Mihir @mihirneal]

@lillysharples it's latin lol

[Mihir @mihirneal]

@scaling01 *DID NOT

[Mihir @mihirneal]

@paularambles If I were anthropic, I'd make you the CEO

[Mihir @mihirneal]

@paularambles America. since we'd like the oil that comes with unlimited olives

[Mihir @mihirneal]

@missalaniarose Absolutely!

[Mihir @mihirneal]

@paularambles USA BABY! 🇺🇸🇺🇸

[Mihir @mihirneal]

@wholemars Terafab can’t come soon enough

[Mihir @mihirneal]

@bubblemoder LMAOO

[Lilian Weng @lilianweng]

A super long overdue (3+ years?) post on scaling laws.

Compute is expensive. Scaling laws are a way to help us reason about the optimal compute allocation between data and model size before committing to a large run.

The post covers what scaling laws predict, how compute-optimal allocation works, why Kaplan et al. and Chinchilla disagree, and how data limits + fitting details make extrapolation tricky.

https://t.co/HP26eJvjHB

[Mihir @mihirneal]

@SawyerMerritt Terafab can’t come soon enough

[Mihir @mihirneal]

@iScienceLuvr God forbid I get my 7 hours lol

[Mihir @mihirneal]

@paularambles One for you, 2 for your sub agents?

[Mihir @mihirneal]

@justalexoki because it runs hot!

[Mihir @mihirneal]

@brianmctaggart More beautiful than some random tower

[Mihir @mihirneal]

Common TSA L?

[TSA @TSA]

Soccer fans visiting a very large gas station for the first time... carry-on BBQ sandwiches & beaver nuggets? Yes. An actual beaver? ABSOLUTELY NOT!