KJ

Builder in SF • Physical AI & Data Driven

[DeepReach AI @DeepReach_AI]

How will AI learn about the physical world? We don’t believe the answer is one giant data source.

It will be thousands of entrepreneurs building local data businesses around the world.

That’s why we built @DeepReach_AI — a platform where entrepreneurs build local data businesses for Physical AI.

Today, we’re excited to launch on @ycombinator
Join our network today!

https://t.co/x6TUl1rPhc

#yc #robotics #startup #AI #physicalAI #data #BusinessSuccess

[Dhruv Diddi @DhruvDiddi]

I always get messages from builders asking for the best intro resources on Physical AI. I captured my latest take in last week's office hours 🤖

VLA models, SO-101 data collection, sim training with Isaac Sim, edge vs. cloud 👇 @nebiusai @Nebius_Academy @nebiustf

[KJ @JolinJiao]

Fun afternoon at an innovation showcase in SF 🤖

Watched Ossie 1, a dual-arm humanoid, do live table wiping, and talked robot learning with the team around it.

Also got invited to InnoEX 2027 in Hong Kong next April. See you there? 👀

Physical AI is getting real 🦾

[KJ @JolinJiao]

Spent the morning at @circuitlaunch's Brew Review #2 for #SFTechWeek 🤖🍺

1 paper: SmellNet — teaching machines to smell

3 live robots: real hardware, no slides
Theme: embodied AI, built across borders 🌏

Thanks @DhruvDiddi @RobotLaunch @soniya_ahuja for hosting!

[KJ @JolinJiao]

@Alfred_Lin Thank you for the inspiring conversation

[KJ @JolinJiao]

Got to chat with @Alfred_Lin after the talk about real-world evaluation for robotics 🤖
Really grateful for his time and perspective. Lots to think about as we keep building in physical AI.

[KJ @JolinJiao]

Stanford AI Club x @Alfred_Lin of @sequoia tonight 🌲

Standing room only, the energy in the room was unreal ⚡️

Thank you for such an inspiring conversation!

[KJ @JolinJiao]

Today we're miners. ⛏️🐰

Mining 2,352 clips for robot near-misses.

💎 = the most dangerous.

Catch: our rabbit can't reach its own button. A human confirms.

Grabbit Mining Co. w/ @lj_ships

#VASTBuildersChallenge 📍SF

@VAST_Data @nvidia @CoreWeave @cursor_ai @wandb

[KJ @JolinJiao]

We saw.😎

The $400 robot arm grabbed the medication.

Then it stole the sponsor's socks. 🌸🧦

10/10 would hack again.🤓

Sponsor @flwrlabs
Build with @lj_ships

[KJ @JolinJiao]

Collaborative Agent Hackathon
@Stanford @flwrlabs @nebiusai

Bringing a $400 robot arm to an agent hackathon.

We will see.

[KJ @JolinJiao]

Everyone else at this agent hackathon brought laptops.
We brought two robot arms. 🦾🦾

Collaborative agents, but make it physical.

@flwrlabs @Stanford @lj_ships

[KJ @JolinJiao]

Collaborative Agent Hackathon
@Stanford @flwrlabs @nebiusai

Bringing a $400 robot arm to an agent hackathon.

We will see.

[KJ @JolinJiao]

From idea to a real robot arm in one day at YC 🤏

Proud of what @lj_ships and I built at Bitrig Hacks. The hinge is a knuckle.

Huge thanks to @ycombinator and @bitrig

[Li Junyi (LJ) @lj_ships]

Knuckle turns the iPhone Duo's hinge into a robot gripper.

Fold the Duo → a real SO-101 claw closes. Record a grasp, replay it hands-free, export it as 30Hz training data.

Yes, that's a real robot arm. No Poohs were harmed.

Built at @bitrig hacks with @JolinJiao

[Li Junyi (LJ) @lj_ships]

Knuckle turns the iPhone Duo's hinge into a robot gripper.

Fold the Duo → a real SO-101 claw closes. Record a grasp, replay it hands-free, export it as 30Hz training data.

Yes, that's a real robot arm. No Poohs were harmed.

Built at @bitrig hacks with @JolinJiao