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Open-weight model · Robotics

smolvla_base

by LeRobot lerobot/smolvla_base

SmolVLA is a compact, efficient Vision-Language-Action (VLA) model designed for affordable robotics, trainable on a single GPU and deployable on consumer hardware, while matching the performance of much larger VLAs through community-driven data.

Parameters450M
Context
Weights906.7 MB
Licenseapache-2.0
AccessOpen weights
Monthly Downloads158.9k

Runs On

What it takes to serve smolvla_base (450M parameters): the memory its weights need at each precision, and the cheapest way to rent enough data-center GPUs to hold them.

PrecisionWeightsMemory neededCheapest setupPer hourAlso fits
16-bit 0.9 GB 1.1 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00
8-bit 0.5 GB 0.5 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00
4-bit 0.2 GB 0.3 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00

Memory is the weights at that precision plus 20% for the runtime and a short context; a long context needs more. Prices are the lowest on-demand hourly rates in the SAVRN Index, read Sep 18, 2026.

Model Card

By LeRobot, published under apache-2.0, revision d9f33c94a60f.

SmolVLA (LeRobot)

SmolVLA is a compact, efficient Vision-Language-Action (VLA) model designed for affordable robotics, trainable on a single GPU and deployable on consumer hardware, while matching the performance of much larger VLAs through community-driven data.

Original paper: (SmolVLA: A Vision-Language-Action Model for Affordable and Efficient Robotics)[https://arxiv.org/abs/2506.01844] Reference implementation: https://github.com/huggingface/lerobot

Model description

  • Inputs: images (multi-view), proprio/state, optional language instruction
  • Outputs: continuous actions
  • Training objective: flow matching
  • Action representation: continuous
  • Intended use: Base model to fine tune on your specific use case

Quick start (inference on a real batch)

Installation

pip install "lerobot[smolvla]"

For full installation details (including optional video dependencies such as ffmpeg for torchcodec), see the official documentation: https://huggingface.co/docs/lerobot/installation

Load model + dataset, run select_action

Read the full model card (444 words)

Identity and Version

Repository
lerobot/smolvla_base
Publisher
LeRobot
Task
Robotics
Modality
Control
Library
lerobot
Parameters
450M parameters
Languages
en
Revision
d9f33c94a60fb382c90dea2164c96845bd955e28
First published
2025-06-01
Last updated
2026-09-17

Files and Weights

10 files, 914.7 MB in total. The weights are 3 files totalling 906.7 MB in safetensors.

Weights3 files · 906.7 MB
Configuration3 files · 4.8 KB
Documentation1 file · 4.6 KB
Other2 files · 8.0 MB
Repository1 file · 1.6 KB
Every file
FileTypeSizeSHA-256
model.safetensorsWeights906.7 MB 7cd549ac2351
policy_postprocessor_step_0_unnormalizer_processor.safetensorsWeights640 B 490ab239d96e
policy_preprocessor_step_5_normalizer_processor.safetensorsWeights640 B 490ab239d96e
config.jsonConfiguration2.3 KB
policy_postprocessor.jsonConfiguration660 B
policy_preprocessor.jsonConfiguration1.9 KB
README.mdDocumentation4.6 KB
Finetune_SmolVLA_notebook.ipynbOther6.8 KB
collage_small.gifOther8.0 MB c43f022bf1fd
.gitattributesRepository1.6 KB

License and Download

License
apache-2.0
Access
Open weights, no gate
Download size
906.7 MB
Download from LeRobot

Released by LeRobot through its official repository on Hugging Face. Read the license.

Built From

Memory Requirements

PrecisionWeights in memory
As published906.7 MB
16-bit0.9 GB
8-bit0.5 GB
4-bit0.2 GB

Weights only, from the published parameter count; the key-value cache and runtime add to this.

Built on This Model

Questions About smolvla_base

How much GPU memory does smolvla_base need?

About 1.1 GB at 16-bit and 0.3 GB at 4-bit: the weights (450M parameters) plus a working margin. A long context needs more.

What is the cheapest GPU to run smolvla_base on?

At 16-bit, 1x MI300X from $1.85 an hour; at 4-bit, 1x MI300X from $1.85 an hour, at the lowest on-demand prices the SAVRN Index lists.

Can I use smolvla_base commercially?

Yes. smolvla_base is released under Apache License 2.0. The Apache License 2.0 is a permissive open-source license. It permits commercial use, modification and redistribution. It requires keeping the license and copyright notices and any NOTICE file, stating significant changes, and it includes an express patent grant from contributors.

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