simulation & RL for humanoids @ UMA + frenetic open-sourcer. Sorbonne mEng '26. Past: PAL Robotics, uTokyo, AIRBUS

nvidia-smi
Joined October 2022
Open-sourcing pal_mjlab -- the RL work I did at PAL Robotics. Velocity tracking, motion imitation, and dual-arm reaching across KANGAROO, TALOS, and TIAGo Pro. Multiple tasks transferred to real hardware, all built on @kevin_zakka's mjlab.
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Louis Le Lay ✈️ CoRL retweeted
We 'll be hiring very actively at Berkeley! Assistant/ Associate/ Full Professor – Electrical Engineering & Computer Sciences (Deadline: Dec. 7, 2026 at 11:59 pm Pacific Time). Apply here: aprecruit.berkeley.edu/JPF05… Assistant Professor – AI for Biology – Electrical Engineering & Computer Sciences and Center for Computational Biology (Deadline: Nov. 9, 2026 at 11:59 pm Pacific Time) Apply here: aprecruit.berkeley.edu/JPF05… Assistant Professor – Intersection of Statistics and CS – Departments of Electrical Engineering & Computer Sciences and Statistics (Deadline: Nov. 10, 2026 at 11:59 pm Pacific Time). Apply here: aprecruit.berkeley.edu/JPF05… Assistant/ Associate/ Full Professor – Computational Biomedicine - Center for Computational Biology (Deadline: Nov. 18 2026 at 11:59 pm Pacific Time). Apply here: aprecruit.berkeley.edu/JPF05… Assistant / Associate Professor – Electronic, Functional, and Quantum Materials – Electrical Engineering & Computer Sciences and Materials Science & Engineering (Deadline: Dec. 7, 2026 at 11:59 pm Pacific Time). Apply here: aprecruit.berkeley.edu/JPF05… Coming Soon! Assistant/ Associate/ Full Professor - AI and the Physical Sciences -Bakar Institute of Digital Materials for the Planet (BIDMaP) and home department(s) to be determined. (Deadline: Dec. 7, 2026 at 11:59 pm Pacific Time) Apply here: aprecruit.berkeley.edu/JPF05… Coming Soon! Assistant/ Associate/ Full Professor-in-Residence - Gladstone Institute of Data Science and Biotechnology and home department(s) to be (Deadline: TBD at 11:59 pm Pacific Time) Apply here: aprecruit.berkeley.edu/JPF05…
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Louis Le Lay ✈️ CoRL retweeted
Fav clips. We did 10+ continuous ladder climbing trials without a failure. Until the hardware was kinda cooked. The rung width is 4cm here.
With @JayHe748646 @KehanWen170077 @leggedrobotics , we push humanoid mobility to next frontier. Achieved by a generalist contact planner + a generalist tracker + a generalized neural mapping, warmstarted from few human data. Website: leggedrobotics.github.io/ACP… Promo Video 👇
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Louis Le Lay ✈️ CoRL retweeted
With @JayHe748646 @KehanWen170077 @leggedrobotics , we push humanoid mobility to next frontier. Achieved by a generalist contact planner + a generalist tracker + a generalized neural mapping, warmstarted from few human data. Website: leggedrobotics.github.io/ACP… Promo Video 👇
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Louis Le Lay ✈️ CoRL retweeted
Replying to @EkaRobotics
@EkaRobotics has raised a $150M Series A. Generality v/s Performance is the fundamental tension at the frontier of robotics. Generality without performance is just a prototype. Performance without generality is just a single-purpose tool. Customers shouldn’t have to choose. Eka breaks the tradeoff. Powered by our Vision-Force-Action (VFA) model, we deliver the performance and versatility customers need to put robots to work every day. Eka is built on three convictions: ⚡️Force is the language of manipulation. 🚀 Reinforcement learning is how dexterous manipulation scales. 🎂 System 1—fast, reliable physical execution—is the bottleneck to solve. With this funding, we will scale our model and accelerate customer deployments. Grateful to be building alongside a dream team and investors who share our ambition.
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Louis Le Lay ✈️ CoRL retweeted
We’re growing our team @UMA_Robots and building the infrastructure to take our in-house model to the next level. If you have experience in large-scale training on massive multimodal data, please apply app.dover.com/jobs/uma. (hiring RS/REs to work on Training/Data)
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Louis Le Lay ✈️ CoRL retweeted
Our team scaled @Tesla Autopilot and Optimus, VL-JEPA at FAIR, RL post-training on Gemini, RL for locomotion. Come work with us to push the frontier of AI in robotics! Open roles in 🧵 -> Infra | Scientist | Engineer
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Louis Le Lay ✈️ CoRL retweeted
A nice example of physics sims and learned world models working together! The simulator provides accurate transitions and the world model amortizes them into a much faster, differentiable surrogate for policy optimization. Play with it in your browser: supermimic.github.io/demo/
We found a way to scale humanoid control that reduces GPU-hours by more than 1000×. Across 129,514 motions, SuperMimic surpasses the state of the art (128 GPUs, 7 days) with 1 GPU in 3 hours. Project: supermimic.github.io Demo: supermimic.github.io/demo/
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Louis Le Lay ✈️ CoRL retweeted
We found a way to scale humanoid control that reduces GPU-hours by more than 1000×. Across 129,514 motions, SuperMimic surpasses the state of the art (128 GPUs, 7 days) with 1 GPU in 3 hours. Project: supermimic.github.io Demo: supermimic.github.io/demo/
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Louis Le Lay ✈️ CoRL retweeted
Excited to announce I just joined @UMA_Robots as Lead Middleware Engineer! Every robot has a nervous system, and I will help build theirs. 20+ years on one question: the right data, to the right place, at the right time. From DDS to Zenoh, now for humanoid robots. Let’s build! 🦾
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Louis Le Lay ✈️ CoRL retweeted
The @Tesla Roadster stunts, simulated in MuJoCo! Thrusters are site actuators, the ramp suction uses adhesion actuators, and the builtin box QP decides how hard to fire each jet.
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I really like these guys, I think it's the best open-sourced hardware out there
🚀RP1 is officially here. 🌍Putting control of robotics back in developers’ hands. Introducing RP1 (ROBOTO 01) by RoboParty—a high-performance, fully open-source humanoid robotics platform for frontier robotics research and embodied AI model development. 🤖 Open across the full hardware and software stack: • Robot platform: mechanical CAD, bill of materials, and assembly documentation • Actuators: in-house ROMOMO joint designs and related technical resources • Control: electrical systems, firmware, low-level drivers, and motion control implementations • Development: simulation models, SDKs, data processing tools, and training tools • Engineering foundations: technical documentation and research materials Open the black box. Understand the system. Make it your own. A deviation in motion can originate in the model, control policy, actuator response, or mechanical structure. RP1 opens up the design and implementation of these layers so developers can trace problems, modify the system, and validate changes on real hardware. Open-source algorithms for advanced motion control RP1 has demonstrated continuous walking, recovery from disturbances, getting back up after a fall, and human motion tracking. UFO and MimicLite connect motion learning, control policies, and execution on real hardware. The open toolchain connects data collection, simulation training, hardware deployment, and experimental validation—supporting joint iteration across models, control, and hardware. From RPO to RP1, we’re turning one team’s engineering experience into a starting point for many more. Opening the future of embodied AI to everyone ready to explore it. 🔗RP1 on GitHub: github.com/Roboparty/RP1 #RoboParty #RP1 #OpenSourceRobotics #EmbodiedAI
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back-to-back from octi et al.
(1/6) From @GoogleDeepmind’s AlphaGo to AlphaZero, we saw machines find moves that reached beyond what we’d imagined for them. No one taught them those strategies. They emerged from reinforcement learning: playing, failing, and trying again under a single binary task reward for success or failure. Inspired by them, we couldn’t help but wonder: what might a robot discover if we gave it that same freedom to learn? That question led us to AlphaNIST. Starting tabula rasa, with that same binary reward plus only a simple control cost, a single policy solves all 20 @NIST assembly tasks at a 98.2% success rate in simulation. More surprising still, AlphaNIST can complete 10 different tasks in a row, receiving that reward only once, after all 10 are done. Just as AlphaGo’s strategies surprised its creators, AlphaNIST discovered dexterous strategies we couldn’t have come up with ourselves. Paper: arxiv.org/abs/2610.13354 Website: alpha-nist.github.io
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Louis Le Lay ✈️ CoRL retweeted
(1/6) From @GoogleDeepmind’s AlphaGo to AlphaZero, we saw machines find moves that reached beyond what we’d imagined for them. No one taught them those strategies. They emerged from reinforcement learning: playing, failing, and trying again under a single binary task reward for success or failure. Inspired by them, we couldn’t help but wonder: what might a robot discover if we gave it that same freedom to learn? That question led us to AlphaNIST. Starting tabula rasa, with that same binary reward plus only a simple control cost, a single policy solves all 20 @NIST assembly tasks at a 98.2% success rate in simulation. More surprising still, AlphaNIST can complete 10 different tasks in a row, receiving that reward only once, after all 10 are done. Just as AlphaGo’s strategies surprised its creators, AlphaNIST discovered dexterous strategies we couldn’t have come up with ourselves. Paper: arxiv.org/abs/2610.13354 Website: alpha-nist.github.io
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Louis Le Lay ✈️ CoRL retweeted
We hosted @Numerama in our lab for their deep dive on the humanoid race between the US and China. Our CEO @RemiCadene on what real autonomy looks like beyond spectacular demos, and where Europe fits in. Full video (in French) 👇
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Louis Le Lay ✈️ CoRL retweeted
(1/5) Everyone says dexterous manipulation needs real-world data. These policies were trained with none. Our robots mesh gears, thread nuts, and insert pegs zero-shot from RGB, and the same recipe works for locomotion across terrains much harder than before. The missing piece wasn't a better RL algorithm, but a small tweak to what the robot practices. Today we're releasing Success-Guided Sampling (SGS), a simple change to the task sampler that unlocks new levels of dexterity and agility with large-scale, end-to-end sim2real RL. No demonstrations, no per-task reward tuning. Just PPO at scale. Check out the policies yourself at sgs-rl.github.io! All videos at 1x speed! 🧵 🔈
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Louis Le Lay ✈️ CoRL retweeted
with just a minor concussion
At UMA, they flip and live 😁
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Louis Le Lay ✈️ CoRL retweeted
First flip of a Booster K1 ever? @boosterobotics
At UMA, they flip and live 😁
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Louis Le Lay ✈️ CoRL retweeted
“Decommissioning” our @boosterobotics robot with a front flip off a table for fun. Made end-to-end in half a day.
At UMA, they flip and live 😁
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Saw theirs and did it for fun, took us half a day from sim to on the table :)
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