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Open-weight model · Robotics

smolvla-policy-test

by Hayato Nakamura Tron-Hayato/smolvla-policy-test

SmolVLA is a compact, efficient vision-language-action model that achieves competitive performance at reduced computational costs and can be deployed on consumer-grade hardware. This policy has been trained and pushed to the Hub using LeRobot.

Parameters450M
Context
Weights906.7 MB
Licenseapache-2.0
AccessOpen weights
Monthly Downloads88

Runs On

What it takes to serve smolvla-policy-test (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 Hayato Nakamura, published under apache-2.0, revision 773318d8e3b4.

SmolVLA is a compact, efficient vision-language-action model that achieves competitive performance at reduced computational costs and can be deployed on consumer-grade hardware. This policy has been trained and pushed to the Hub using LeRobot. Learn how to train and run it in the LeRobot smolvla guide, or browse the full documentation. The policy consumes these observation features and produces these action features. Inputs Outputs New to LeRobot? These guides cover the full workflow: - Install LeRobot — set up the lerobot package. - Hardware setup — assemble, wire, and calibrate your robot and cameras. - Record data & train a policy — the end-to-end imitation-learning walkthrough. - CLI…

Read Hayato Nakamura's full model card

Model Card for smolvla

SmolVLA is a compact, efficient vision-language-action model that achieves competitive performance at reduced computational costs and can be deployed on consumer-grade hardware.

This policy has been trained and pushed to the Hub using LeRobot.

Learn how to train and run it in the LeRobot smolvla guide, or browse the full documentation.


Model Details

  • License: apache-2.0
  • Fine-tuned from: lerobot/smolvla_base
  • Robot type: so_follower
  • Cameras: front, wrist

Inputs & Outputs

The policy consumes these observation features and produces these action features.

Inputs

Feature Type Shape
observation.state STATE (6,)
observation.images.camera1 VISUAL (3, 256, 256)
observation.images.camera2 VISUAL (3, 256, 256)
observation.images.camera3 VISUAL (3, 256, 256)

Outputs

Feature Type Shape
action ACTION (6,)

Training Dataset

Training Configuration

Setting Value
Training steps 6000
Batch size 8
Optimizer adamw
Learning rate 0.0001
Seed 1000
LeRobot version 0.6.1

How to Get Started with the Model

New to LeRobot? These guides cover the full workflow:

The short version to run and train this policy:

Run the policy on your robot

lerobot-rollout \
  --strategy.type=base \
  --robot.type=so_follower \
  --robot.port=<your_robot_port> \
  --robot.cameras="{ <camera_1>: {type: opencv, index_or_path: <index_or_path>, width: 640, height: 480, fps: 30}, <camera_2>: {type: opencv, index_or_path: <index_or_path>, width: 640, height: 480, fps: 30}}" \
  --policy.path=Tron-Hayato/smolvla-policy-test \
  --task="Grab the object" \
  --duration=60

Replace the remaining <...> placeholders with your own values: --robot.port and the camera names/indices are specific to your machine, and the camera names must match the observation keys this policy was trained on.

When --strategy.type=base is used the script doesn't record the episodes. Skipping duration will make the policy run indefinitely. For more information look at rollout documentation.

Train your own policy

This policy type is usually fine-tuned from the pretrained base model lerobot/smolvla_base:

lerobot-train \
  --dataset.repo_id=${HF_USER}/<dataset> \
  --policy.path=lerobot/smolvla_base \
  --output_dir=outputs/train/<policy_repo_id> \
  --job_name=lerobot_training \
  --policy.device=cuda \
  --policy.repo_id=${HF_USER}/<policy_repo_id> \
  --wandb.enable=true

Writes checkpoints to outputs/train/<policy_repo_id>/checkpoints/.


Evaluation

No evaluation results have been provided for this policy yet.


Citation

If you use this policy, please cite the method linked in the description above, along with LeRobot:

@misc{cadene2024lerobot,
    author = {Cadene, Remi and Alibert, Simon and Soare, Alexander and Gallouedec, Quentin and Zouitine, Adil and Palma, Steven and Kooijmans, Pepijn and Aractingi, Michel and Shukor, Mustafa and Aubakirova, Dana and Russi, Martino and Capuano, Francesco and Pascal, Caroline and Choghari, Jade and Moss, Jess and Wolf, Thomas},
    title = {LeRobot: State-of-the-art Machine Learning for Real-World Robotics in Pytorch},
    howpublished = "\url{https://github.com/huggingface/lerobot}",
    year = {2024}
}

Identity and Version

Repository
Tron-Hayato/smolvla-policy-test
Publisher
Hayato Nakamura
Task
Robotics
Modality
Control
Library
lerobot
Parameters
450M parameters
Languages
Not stated by the source
Revision
773318d8e3b49d18b41e1bd10269d7815e896bf7
First published
2026-08-31
Last updated
2026-09-18

Files and Weights

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

Weights3 files · 906.7 MB
Configuration4 files · 12.7 KB
Documentation1 file · 6.1 KB
Repository1 file · 1.5 KB
Every file
FileTypeSizeSHA-256
model.safetensorsWeights906.7 MB a9f67abfe86f
policy_postprocessor_step_0_unnormalizer_processor.safetensorsWeights7.6 KB 19e199d3820e
policy_preprocessor_step_5_normalizer_processor.safetensorsWeights7.5 KB 64fba936d002
config.jsonConfiguration2.6 KB
policy_postprocessor.jsonConfiguration660 B
policy_preprocessor.jsonConfiguration2.0 KB
train_config.jsonConfiguration7.4 KB
README.mdDocumentation6.1 KB
.gitattributesRepository1.5 KB

License and Download

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

Released by Hayato Nakamura 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.

Questions About smolvla-policy-test

How much GPU memory does smolvla-policy-test 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-policy-test 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-policy-test commercially?

Yes. smolvla-policy-test 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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