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FastTD3: Simple, Fast, and Capable Reinforcement Learning for Humanoid Control

Published: May 28, 2025 | arXiv ID: 2505.22642v3

By: Younggyo Seo , Carmelo Sferrazza , Haoran Geng and more

Potential Business Impact:

Teaches robots to walk much faster.

Business Areas:
Robotics Hardware, Science and Engineering, Software

Reinforcement learning (RL) has driven significant progress in robotics, but its complexity and long training times remain major bottlenecks. In this report, we introduce FastTD3, a simple, fast, and capable RL algorithm that significantly speeds up training for humanoid robots in popular suites such as HumanoidBench, IsaacLab, and MuJoCo Playground. Our recipe is remarkably simple: we train an off-policy TD3 agent with several modifications -- parallel simulation, large-batch updates, a distributional critic, and carefully tuned hyperparameters. FastTD3 solves a range of HumanoidBench tasks in under 3 hours on a single A100 GPU, while remaining stable during training. We also provide a lightweight and easy-to-use implementation of FastTD3 to accelerate RL research in robotics.

Repos / Data Links

Page Count
15 pages

Category
Computer Science:
Robotics