
Co-Founder and Chief Strategy Officer at @WaldenRobotics . Adjunct Prof of CS at @Stanford, ex partner at @CalibrateVC & head of ML at @ToyotaResearch
San Francisco, CA
Joined February 2012
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Adrien Gaidon retweeted
How could general-purpose robots change manufacturing beyond automating one task at a time?
Our CEO @RussTedrake raised that question as he helped kick off @EconomistEvents' Physical AI & Robotics Summit, exploring the arc of progress in robotics and what advances might be next.
Adrien Gaidon retweeted
Deployment data helps improve robot AI. Our CTO @Ben_Burchfiel joins @encord_team's Long Horizon panel on large behavior models with @rodneyabrooks, @YunzhuLiYZ & @MashaItkina. @rocketalignment (@theinformation) moderates.
Today, 4:05pm PT, SF
encord.com/long-horizon/
Adrien Gaidon retweeted
Our co-founder and CEO @RussTedrake will be in London on October 13 for @EconomistEvents' Physical AI & Robotics Summit. He’ll discuss how robots are learning to adapt, the technical challenges that remain, and what it takes to deploy these systems at scale.
If you’re attending, come find Russ! He’ll be speaking at 8:55am BST.
events.economistenterprise.c…
More robot secrets shared soon, this time by someone that knows much more about them than me: our CTO @Ben_Burchfiel ! PS: I wish I had time to do the Lyon one, but we're too busy cooking something very exciting at Walden...
Our CTO @Ben_Burchfiel will be at @tulipinterfaces' Operations Calling alongside @nvidia, Litmus and @ThirdWaveAi. They’ll talk about how Physical AI can help teams investigate problems on the line before the evidence is gone, including the work of connecting different systems and deciding where people still need to make the call.
Thanks to Tulip for having us. Come find Ben in Somerville on October 6-7!
operationscalling.com/2026-u…
❤️ Ilir gets it (he has seen A LOT of robotics companies). Physical AI is insanely hard, but we know "the Walden Way" works: we see it continuously improve in production, and we are scaling way faster than we initially thought. Time to accelerate!
A robot that works 90% of the time is completely useless in a factory.
@adnothing from @WaldenRobotics had a really good session at @CoreWeave's Fully Connected today on what happens when you stop optimizing robotics for demos and start optimizing for deployment.
One thing he kept coming back to was this:
You have to earn the right to be on the factory floor.
Customers don't care that your model looked great in the lab. They already have a process that works, people doing the job, quality targets, cycle times and some pretty scary spreadsheets with numbers like 99.5%.
Your robot has to work on THEIR terms.
And that's where Walden's approach gets interesting.
They don't assume the AI has to be perfect before deployment. But they also don't ask a factory to tolerate a useless robot for a year while it collects data.
Instead, the robot works autonomously and can call for remote assistance when it gets into a situation it doesn't know how to handle.
That intervention does two things.
The job still gets done.
And the correction becomes some of the most valuable data you can give the system.
Adrien called these on-policy corrections. The stuff you only get once the robot is actually out there doing the work.
His line on this was probably my favorite:
“There’s no amount of scratching your head in a lab that will tell you the things we learned.”
That's also why Walden is so focused on deployment data.
You can collect huge amounts of demonstrations, video and synthetic data. Eventually you still put the robot into a real factory and discover everything your researchers didn't think about.
And then there was the hardware... Walden's first robot is on wheels.
Which is funny because their CEO @RussTedrake has spent more than a decade working on legged robots.
But Adrien's explanation was basically: we're deploying in factories. Very few people are doing backflips in factories. 🤣
Wheels give them more stability, more battery, more compute on the robot and, importantly, the ability to stop safely at pretty much any point.
That's probably what I liked most about the whole talk.
Very advanced AI... very little interest in making the robot look impressive for the sake of it.
Adrien Gaidon retweeted
Where a robot's autonomy sits today matters less than how fast it learns, and whether that learning is accelerating. At Fellows Forum, our co-founder @adnothing discussed why that second-order view matters and how we approach it.
Between brute-forcing a general model and knocking out use cases one by one, there is a third way. At Walden, the AI drives the robot and a remote assistant steps in when needed. The engineering challenge is meeting production requirements while generating high-value on-policy training data, prioritizing information gained over data volume alone.
Watch the panel: youtube.com/live/iLhMOdYWapI…
Come learn some robot secrets! Walden is accelerating the deployment of frontier Physical AI in the most demanding (and rewarding) manufacturing environments. I'll share how we continuously improve from deployments by working with and alongside people.
Happening today at @CoreWeave Fully Connected: our co-founder and Chief Strategy Officer @adnothing takes the stage at 2pm PT / 5pm ET for his technical session, then joins @theCUBE live at 4pm PT / 7pm ET. Tune in: thecube.net/events/coreweave…
Adrien Gaidon retweeted
Hear from all these incredible people (and more!!): @mikeyk @djrosent @biilmann @jgreze @francesca_lab @timgl @joon_s_pk @ElenaVerna @adnothing @ronlivs @12muralij @laurenmhreeder @spdholakia @glebkuz @kevinmpeterson1 @jarredsumner @BMarcusMcCann @TobinSouth
DM me if you're in town for SF Tech Week and want to get on the guest list.
Excited to be talking about agents, physical or otherwise, at the Claude Founder House next week! Come say hi!
Good evals are gold in robotics too! Super excited to talk about how we're accelerating and scaling the deployment of general-purpose robots at Fully Connected this week! PS: I remember fondly the first FC where Lukas @l2k , Shawn @shawnup , and the W&B mixture of experts invited me ❤️ This year seems to be huge! Thanks friends and CoreWeave for having me again!
How do you know a new robot policy is ready for production? At Walden, we evaluate task success alongside autonomy, interventions, speed and transfer.
On Thursday, Adrien Gaidon joins @theCUBE live from @CoreWeave’s Fully Connected. Tune in for a discussion of the training and evaluation loop behind our general-purpose robots, and what we’re learning in manufacturing.
Tune in Oct 1 at 2pm PT / 5pm ET for Adrien’s technical session, then 4pm PT / 7pm ET for his live interview on theCUBE: thecube.net/events/coreweave…
Lots of really good, hard earned lessons about robotics in the real world and what's coming next!
What does it take to get robots out of the lab and onto the factory floor?
Our CEO @RussTedrake joined @BradPorter_ on Deployed to talk DARPA lessons, wheels vs. legs, factory safety, and why deployment is all about the details.
cobot-deployed.com/ep12
I ❤️ that chocolate 😋 The real world is an endless (non-stationary!) stream of such examples. Scaling requires continuous learning from deployments (from foundations to specialists). One of the lessons from self-driving that transfers to mobile manipulation.
A video from a Pi robot deployed at Dandelion Chocolate, fully autonomous w/ no interventions. 🤖
Deploying robots has taught us surprising lessons about the gap between proof-of-concept (i.e. building one box) and real-world utility (productively building boxes for hours).
I expected that the hard part is building the box, since it’s the most dexterous, but that wasn't what we found. Counterintuitively, the hardest part was reliably stacking the boxes. Our original table-mounted robot had poor visibility of the stack without special separately-mounted cameras. Plus, stacking requires more generalization (each box is placed in a different location), and an imprecisely-placed box can lead the entire stack to collapse many boxes later.
We recently switched this deployment over to a mobile robot, and it's fun to watch the robot being completely self sufficient for multiple hours. 🙂 Data and feedback from real world use-cases like these are quite valuable for the π pre-trained model as we scale!
Stacked event with many of my favorite people! Join us for some hard earned insights about how to rapidly deploy general-purpose robots that are broadly useful across industries and learn continuously in production!
Robotics and world models take center stage at @FellowsForum 2026 on September 24, cohosted by @Fellows_Fund and @nebiusai, in partnership with @nvidia.
For founders and researchers building Physical AI, how often do you get to hear from this many leading robotics and world-model teams in one place?
We’re bringing together leaders from @NVIDIA, @GeneralistAI, @RhodaAI, @odysseyml, @Waymo, @DynaRobotics, @CloudChef, @Tutor Intelligence, @SereactAI, and @WaldenRobotics, for a full day of intensive discussions on how AI learns, understands, and acts in the physical world.
Very proud of our efforts with Samsung and our strong partnership with SDS! We are hiring fast and accelerating on all fronts (hardware, software, AI, deployments, commercial...). Join us now, especially if your favorite movie is "Everything, everywhere, all at once" 😉
Our work with @SamsungSDSA is moving into specific manufacturing use cases. Working with various Samsung affiliates, Walden’s general-purpose robots were used to test tasks including parts transport and consumables replacement.
Working with Samsung has pushed aspects of our technology stack in truly new and exciting ways. We’re excited to continue accelerating the relationship.
biz.chosun.com/en/en-it/2026…
Come listen to "Adrien Walden" at Fully Connected! He's my alter ego deploying general-purpose robots that do useful work today alongside people. Great guy 😉 (PS: "Gaidon" indeed rhymes with "Walden" in typical English pronunciation, and my wife thinks I'm married to my job anyway 😂 This is my favorite typo of the year ❤️)
Adrien Walden led ML at Toyota Research. Then he co-founded @WaldenRobotics, which just left stealth with $300M.
Catch @adnothing bringing physical AI to #FullyConnected26. Sept 29–Oct 1, SF.
Register here: utm.io/usfdT
Adrien Gaidon retweeted
When we first started working on Diffusion Policy, which felt like an "unlock" for fitting human demonstration data, the explanation I gave myself was that "human demonstration data was subtly much more multimodal than we thought, so we need the modeling power of denoising diffusion to fit it properly."
What Michael's paper brings to light is that some of this multimodality was probably exacerbated (more than I realized) by the fact that we've only been giving our models incredibly short observation context lengths.
For me, this is pretty compelling evidence that we should be pushing for policies with long-context lengths and short action prediction horizons.
Action chunking — especially executing long action sequences open-loop — is widely used in imitation learning for robotic manipulation. Why is it so effective and do we really need it? We find a key reason:
Long open-loop execution helps short-context policies imitate non-Markovian experts.
With this insight, we show how to move beyond open-loop execution: extending policy context restores reactivity while achieving even higher task performance.
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We're growing fast across the full stack: join us at Walden to make general-purpose robots continuously improve from deployment at scale! A bunch of us are at Actuate today: come say hi and apply!
Building general-purpose robots takes frontier Physical AI and practical systems engineering. We’re bringing together people across AI, software, hardware and deployment to push the state of the art and make it work in production.
Join us: waldenrobotics.com/careers
We just moved into our new SF office and are growing fast. Join a cracked team building Physical AI to deliberately supercharge physical work!
The lights are on in San Francisco. Our new office is officially open in downtown SF, giving Walden a home on both coasts as we build the team behind our general-purpose robots. More from SF soon, We’re hiring in SF and Cambridge: waldenrobotics.com/careers

















