anto patrex.
SAN FRANCISCO, CA ALWAYS CURIOUS

Hi, I’m Anto.
I build for the
physical world.

Founder, engineer, and lifelong tinkerer. I’m working on a future where intelligent machines are part of everyday life.

Anto Patrex smilingCurrently building CosmicBrain AI Robotics. Real places. Human possibilities.
Graphite and watercolor illustration of a friendly robot waving from an engineering workbench
A little imagination from the workbench.
01 / A LITTLE CONTEXTHUMAN FIRST. ENGINEER AT HEART.

THE PERSON BEHIND THE ROBOTS

It started with
taking things apart.

Still asking “what if?”

I’ve been building robots since I was seven. My mother is a physics professor; circuit boards were on the kitchen table before homework was.

That curiosity has taken me from building a company in a dorm room to co-founding Mused.com, space engineering, and post-training data for Grok at SpaceXAI (prev xAI). Today, it’s what drives my work at CosmicBrain AI.

I’m drawn to the place where software meets something you can touch. An idea becomes a mechanism. A model becomes motion. Something that lived in a notebook starts working in the world.

I want to build technology that advances humanity, and I like meeting people who are asking big questions and getting their hands dirty finding the answers.

The longer story on LinkedIn

02 / ON MY WORKBENCH

From human intent
to robot motion.

I’m interested in the whole loop:
how robots learn, move, and improve.

A

Giving a robot a human point of view.

MimicXR: exploring VR teleoperation, motion retargeting, and the control systems that turn a person’s movements into robot commands.

CONTROL & TELEOP
B

Making demonstrations useful.

Video-to-robot pipelines: extracting motion, mapping it to a robot’s body, and turning demonstrations into structured training episodes.

DATA & LEARNING
C

Bringing the real world into simulation.

A recent hackathon experiment combining RealSense depth capture, scene reconstruction, and a robot digital twin.

See the experiment
REAL → SIM → REAL

A SMALL DETOUR

A little math.
A little movement.

Two links, two angles, one moving point. This is forward kinematics: a small piece of the math that connects a robot’s joints to the world.

Move the sliders and watch the arm follow. No big model needed — just geometry.

x = L₁ cos θ₁ + L₂ cos(θ₁ + θ₂)y = L₁ sin θ₁ + L₂ sin(θ₁ + θ₂)
More on forward kinematics
EXPERIMENT 0012-LINK PLANAR ARM
Interactive two-link robot armThe arm position updates with shoulder and elbow angles. Current endpoint coordinates are shown below.xy(x, y)origin
35°
55°
ENDPOINT x 1.06 · y 1.85

Illustrative geometry · L₁ = 1.3, L₂ = 1.1 units

03 / CONNECTING THE DOTS

An intentionally
curious path.

Different worlds.
The same urge to build.

  1. 2025 — PRESENT

    CosmicBrain AI

    CURRENT

    Founder & CEO · San Francisco Bay Area

    The data and deployment stack behind Physical AI.

  2. 2024 — 2025

    SpaceXAI (prev xAI)

    post training data · Palo Alto

    Post-training data for Grok 1, 2, and 3, including RLHF, reinforcement learning, data curation, and model training.

  3. 2023 — 2024

    Chabot Space & Science Center

    Space Engineering Team Lead · Oakland

    Space engineering, telescope work, and robotics projects, including work in collaboration with NASA.

  4. PREVIOUSLY

    Mused.com

    Co-Founder

    Scaled to 10 million users in 10 months, sold to all major Ivy League schools, and counted Sergey Brin as a customer.

  5. 2021 — 2022

    Lamaara Technologies

    Co-Founder & CEO

    Built smart wearable technology, raised venture funding, filed a patent, and exited the company. An early lesson in turning an idea into something real.

04 / THE FOUNDATIONS

Always a student.

A-LEVELS

University of Cambridge

Physics & Mathematics (A-levels)

COURSEWORK

Stanford University

CS223A — Robotics

MASTER’S DEGREE

University of San Francisco

Master of Business Administration (MBA)
Business Analytics

BACHELOR’S DEGREE

St. Joseph’s College of Engineering

Bachelor of Technology
Electrical and Electronics Engineering with CS minor

GOOD CONVERSATIONS BUILD GOOD THINGS

Working on something
that should exist?

Robotics, AI, an interesting engineering problem, or an idea you can’t leave alone — I’d love to hear about it.

anto@cosmicbrain.ai
Golden Gate Bridge above the fog in San Francisco, from Anto’s LinkedIn cover photo
Greetings from San Francisco.Anto