SmolVLA
Canonical Summary
Hugging Face VLA with 450M parameters and a flow-matching action expert, released with code, weights, and data.
Lead Organization
Hugging Face
Key Technical Metric
450M parameters
Maturity / Status
arXiv 2025
Governance / License
Code, weights, and data released
Technical Specifications
Parameters 450M, about 100M in the action expert
Backbone SmolVLM-2, first 16 LLM layers, VLM frozen
Action head Flow matching, chunks of 50 actions
Training stack LeRobot, 200k pretraining steps, batch size 256
Release Code, pretrained models, and training data
Verification: verified · Retrieved: 2026-10-19 ·
Primary Source Reference