Changan Chen (@changanvr) header
Changan Chen (@changanvr) profile picture

Co-founder and Chief Research Officer @RhodaAI Scaling visual intelligence toward physical AGI. Prev: @Stanford @UTAustin @FAIR.

Bay Area, San Francisco
Joined December 2015
Photo by Changan Chen (@changanvr)Photo by Changan Chen (@changanvr)Photo by Changan Chen (@changanvr)Photo by Changan Chen (@changanvr)Photo by Changan Chen (@changanvr)Photo by Changan Chen (@changanvr)Photo by Changan Chen (@changanvr)Photo by Changan Chen (@changanvr)Photo by Changan Chen (@changanvr)
Giving robots a sense of touch! Really cool results from teaching robots to interact with the world through tactile feedback, even when blindfolded. Huge shoutout to the team for driving this work! @AndrewEJXie @leooeld @DaveLindell More details: rhoda.ai/research/giving-rob…
What can a robot do without vision? We gave our robot a sense of touch and showed it can recognize and retrieve objects with its cameras blindfolded. Introducing Rhoda’s new tactile sensor—it feels pressure, texture, vibration, slip, and temperature, just like your fingertips.
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Changan Chen retweeted
Continuing our RhodaAtWork series with another look at Direct Video-Action (DVA) in action. This time, a single model handles multiple tasks across two home appliances: refrigerator EPS foam installation and washing machine drain hose routing.
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Changan Chen retweeted
More industries. More real customer work. Introducing RhodaAtWork, a series on the customer workflows our robots are learning to handle across manufacturing and logistics. First up: unpacking, scanning and stacking component reels for electronics manufacturing.
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Changan Chen retweeted
At Rhoda, we care deeply about the science of pre-training for robotics. In one of the most rigorous studies of its kind, over thousands of trials and hundreds of hours of robot evaluations, we show how scaling web-video pre-training leads to better real-world robot performance.
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At @RhodaAI, we study the science of pre-training for robotics. Great work led by @tongzhou_mu showing the scaling laws of web-scale pre-training and how they translate into better policy performance on real-world industrial tasks!
Does scaling pre-training on general web video improve a complex manipulation task in real deployment? We scale model size and pre-training compute, and test on one industrial task. Yes. The better a pre-trained model predicts web video, the better its post-trained policy. 🧵
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I am thrilled to join rhoda.ai @RhodaAI as an advisor, where I am helping harness the abilities of large-scale pre-training and video models for robotics, putting many of my lab's research learnings of the past few years into practice! I will be in-person at the Mountain View office for part of the summer - reach out if you want to chat :)
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🙏 We’re incredibly grateful to everyone who joined our @RhodaAI party last night at @CVPR. The turnout exceeded anything we expected, and it was a pleasure meeting so many researchers and builders from the vision / robotics community. Thank you for all the great conversations!
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One theme came up over and over in the past few days: excitement around world models for robotics. 🤖 The interest from the research community has been incredible. It feels like we’re entering a new phase for physical AI by approaching it with real time video models!
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Huge shoutout to the Rhoda team for making the event happen! 🙌 If you’re at @CVPR, come say hi: @ericryanchan @alexwbergman @isskoro @leooeld @QianqianWang5 @GordonWetzstein @vincesitzmann @BaadeAlan We’re hiring! 🚀 Careers: rhoda.ai/careers
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I’ve known Yuejiang and worked with him for many years. He’s always curious, humble, and eager to learn new things. He's not only a fantastic researcher but also one of the best mentors I've worked with. If you're pursuing a PhD in embodied AI, consider applying to his lab!
Excited to share that I’ll join @NUSComputing as an Assistant Professor in 2027 🏛️ I’ll build LEMA Lab: lema-nus.github.io, study the principles of embodied intelligence, & empower every lab member to thrive 📢 Recruiting 3-6 PhD students in the next application cycles
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I'll be at CVPR next week (6/3–6/7). If you’re working on or exploring opportunities in video models for robotics (research or engineering), happy to chat 🤖 We’re also hosting a Rhoda party Thursday night with many of our technical team in town. DM me for an invite 🍻
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We’re hiring across research and engineering 🚀 Open roles: • video model pre-training • robot post-training • ml infrastructure • deployment • phd internships Careers: rhoda.ai/careers
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We got our large-scale foundational video model running real-time on an edge device! Amazing work led by @leooeld!
Can a large foundation video model run as a real-time robot policy at the edge, on a single RTX 5090? • ✅ No quantization • ✅ No distillation • ✅ Full denoising (all the way from noise to clean video) We just proved it's possible. 👇🎬
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Amazing work on long-context video memory and reasoning led by @QianqianWang5!
Here’s something we’ve never seen done before. Real-world tasks are long and ambiguous. Solving them requires visual memory and state tracking. Most robot policies only see the last few frames. Ours doesn't. We put our DVA, FutureVision, to the perfect testbed: the shell game 🐚. The DVA nails it.
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We are entering a new era of robot deployment. With our model, teams can iterate on solutions and data collection more rapidly thanks to highly efficient training. What once took months can now be achieved in as little as 19 days, bringing development to an entirely new pace.
1/ We are speed running industrial robotics. It took us just 19 days from the first day of data collection to filming a 2.5-hour continuous run of our model autonomously breaking down industrial containers — zero human intervention. The data efficiency of our DVA model is fundamentally changing how fast we bring robots out of the lab and into the factory. Autonomous operation with 3 hours of data collection at a customer factory.
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Over the past year and a half, I’ve spoken with many robot learning researchers, and a recurring concern is how to achieve a 99.99% success rate. Many video demos showcase a single flawless run, but that doesn’t address the long-tail challenges of real-world tasks, where countless corner cases arise. What we’ve observed with video models is that, once sufficiently powerful and pre-trained, they can capture multi-modal distributions effectively. In practice, this means the model can learn diverse behaviors for handling edge cases without requiring hundreds of hours of video data.
Most robot demos are “golden runs”: a perfect take selected from many attempts. But real-world deployment is about Continuous Operation. Watch our DVA model tackle a real-world decanting task for 1.5 hours straight: Uncut, Zero human intervention. 🧵👇
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Changan Chen retweeted
You can now train @physical_int style robots in 1 day for only $5k. Anvil’s devkits have all the hardware, software, controls, cameras, and more ready-to-go. (1/5)
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Changan Chen retweeted
Robot video foundation models can build very powerful robot manipulation policies! These policies enable complex, dexterous manipulation, solve tasks that require long-term visual memory, and do in-context demonstration learning!
To bring generalist intelligent robots to the real world, we have to overcome the data scarcity problem. At Rhoda, we are solving it by reformulating robot policies as video generation. Today, we introduce the Direct Video-Action Model (DVA)
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Today, we introduce Direct Video-Action Models (DVA), the first native causal video model for robot control. By reformulating robot policy as video generation, DVA is extremely scalable by leveraging web-scale video data and using video generation as the modeling objective.
To bring generalist intelligent robots to the real world, we have to overcome the data scarcity problem. At Rhoda, we are solving it by reformulating robot policies as video generation. Today, we introduce the Direct Video-Action Model (DVA)
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This matters a lot for production robotics. In real deployments, workflows change constantly. What we need is a system where setup → data collection → training → deployment can happen within a few days, not months.
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