LeRobot v0.4.0 Overview
LeRobot v0.4.0 is a major release delivering significant advancements in open-source robotics: scalable datasets, new VLA models, simulation environments, hardware integration, and developer tools.
Datasets v3.0
- Chunked Episodes Format: Supports massive datasets like OXE (>400GB) with unprecedented scalability
- Efficient Video Storage & Streaming: Faster loading times and seamless video data streaming
- Unified Parquet Metadata: All episode metadata stored in structured Parquet files
- Improved Performance: Significantly reduced dataset initialization times
New lerobot-edit-dataset CLI for merging, splitting, deleting episodes, and feature manipulation.
Plugin System
A new plugin system revolutionizes hardware integration:
- Connect any robot, camera, or teleoperator with a simple
pip install - Extensibility: develop custom hardware in separate Python packages
- Supported: Reachy 2 (Pollen Robotics), phone teleoperation (iOS/Android)
New Policy Models
- PI0 and PI0.5 (Physical Intelligence): open-world generalization, co-training on heterogeneous data, 4B parameters
- GR00T N1.5 (NVIDIA): cross-embodiment foundation model, 3B parameters, improved language following
Developer Tools
- Processors Pipeline: modular pre/post-processing for both models and hardware
- Multi-GPU Training via Accelerate: 50% speedup with 2 GPUs
Simulation Environments
- LIBERO: 130+ VLA tasks benchmark
- Meta-World: 50+ diverse manipulation tasks