Framework
Open-source physics engine for contact-rich robotics and biomechanics simulation, widely used as the dynamics backend for robot learning research.
DeepMind reports that Gemini 4 Argon scores 87% on the ERQA embodied reasoning benchmark. Its Spot and robot-arm demos run through a named skill and a set of action primitives, so they test planning over a control stack that already exists.
Reality
Google says Gemini 4 Argon turned a video of a person throwing into a calibrated MuJoCo simulation, cutting setup from weeks to hours in an internal workflow. The speedup is Google's own measurement, as relayed by dev.to.
Reality
Safeworld raised more than $12 million, led by Shine Capital and a16z Speedrun, to test generative-AI robots against simulated people. The pitch is that makers of robots nobody can prove safe on paper will pay an outside tester to vouch for them.
Perspective Coverage
4 publishersReality
NVIDIA's walkthrough moves a MuJoCo follower arm up to 2,048 parallel GPU environments, where the kernel body barely changes and most of the work is model compatibility and an opt-in determinism mode.
Reality
A Cambridge start-up says it trained walking and grasping in minutes. Its co-founder and Nvidia's robotics product director both put the current limit at fine dexterity and multi-step tasks like fill and pour.
Reality
MicroDuck's 14 policies came out of roughly five days of serial single-GPU training in mjlab, with nine separate reward designs behind them and a VRAM ceiling that cut the env count to 2048 on rough terrain.
Reality