Patrick Rim

Co-Founder & CEO @buildpbc
Prev. @GoogleDeepMind, @NVIDIA, @Meta, @Caltech, @Yale

[Eddy Xu @eddybuild]

a great mentor once told me that a startup is an external reflection of a founders inner world

[Patrick Rim @PatrickRim]

shoutout family @jonathanjia05 @eddybuild @zikangjiang 🫶

[Patrick Rim @PatrickRim]

@eddybuild

[Patrick Rim @PatrickRim]

It's my great honor to lead Build into our next chapter: massive research bets and long-term partnerships in pursuit of physical superintelligence.

If I do my job, @eddybuild will go down as the greatest visionary of our generation.

[Eddy Xu @eddybuild]

a year ago, @buildpbc made a bet that human data scaling was the bottleneck to solving physical labor

it turns out this was a pretty good bet.

the next stage of this competition is driven by research. as such, i've promoted my co-founder and chief scientist @patrickrim to ceo!

patrick is a crazy man dressed up as a thoughtful researcher. once you talk to him, you'll see what i mean :)

data companies with exceptional researcher CEOs have critical advantages across hiring, sales, and data quality.

in the last 60 days, patrick:

- pushed sota on 3d pose (from scratch)
- built an outlier eng & research team in lightspeed
- assembled the largest academic consortium in physical ai
- won the largest contract in build's history

if things unfold as i predict, patrick will go down as an N-of-1 founder of our generation.

-eddy
founder & president, build ai

[Patrick Rim @PatrickRim]

@eddybuild

[Patrick Rim @PatrickRim]

@eddybuild 🤓

[Patrick Rim @PatrickRim]

@yuseungleee @eddybuild so excited to work together! 🚀

[Patrick Rim @PatrickRim]

@DBlonski

[Patrick Rim @PatrickRim]

@npckellyzeng 🚂 🚂

[Patrick Rim @PatrickRim]

@dgmonsoon means a ton coming from the goat 🫡

[Patrick Rim @PatrickRim]

Incredible, wouldn't have bet against @kevinbanghe and glad to be proven right

[Kevin Bang He @kevinbanghe]

Today we introduce Kairos 1: the world's first model built to simulate individual human behavior. Frontier models only understand population averages, ignoring the individual differences that make us human.

Kairos beats Persimmon, Astra, Fable, and Gemini across 13 simulation benchmarks.

[Patrick Rim @PatrickRim]

@shawnshenjx maui is peak, glad you enjoyed 🌴🥥

[Patrick Rim @PatrickRim]

See you in Sydney for NeurIPS 2026! 😃

[Patrick Rim @PatrickRim]

Check out our new work on deconstructing spatial intelligence 🧠

[Patrick Rim @PatrickRim]

oom more data coming in hot 🔥

[Midcentury @MidcenturyAI]

Introducing Midcentury.

We’re building the data and simulation infra for physical AI.

Today, we’re coming out of stealth with a $15M Series Seed to scale robotics beyond polished demos.

We’re already supporting frontier labs with:

→ The world’s largest egocentric dataset: 2M+ hours, 50+ environments, 20,000+ tasks

→ Matrix: a frontier simulation platform scaled with our real-world data to evaluate and post-train policies at scale

[Patrick Rim @PatrickRim]

@quantbagel 👀

[Patrick Rim @PatrickRim]

throwback to when I collected a million distorted and occluded digits off football jerseys

models don't fail on clean data, they fail on the wrinkles. now we collect wrinkles at scale!

[Patrick Rim @PatrickRim]

@paigeinsf @zhen_do_ob once you submit to the scaling laws, it becomes shockingly lucid!

[Patrick Rim @PatrickRim]

@zhen_do_ob you hustle you win