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Open-weight model · Robotics

thali_smolvla

by Prashant Thakur Prashant-77/thali_smolvla

lerobot/smolvlabase fine-tuned on Prashant-77/thaliall (1050 scripted-expert episodes, 7 skills, language-conditioned, 3 cameras).

Parameters450M
Context
Weights1.8 GB
Licenseapache-2.0
AccessOpen weights
Monthly Downloads51

Runs On

What it takes to serve thali_smolvla (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 Prashant Thakur, published under apache-2.0, revision aaaa0f99efcc.

lerobot/smolvlabase fine-tuned on Prashant-77/thaliall (1050 scripted-expert episodes, 7 skills, language-conditioned, 3 cameras). Camera keys are renamed at train and inference time: overhead → camera1, wrista → camera2, wristb → camera3 (--renamemap; runtime/executors.py applies the same map). Checkpoints in this repo. Root = 20 000 total steps. step14000/ = the best per-skill checkpoint (14 000 steps at batch 16 on a T4; the last 6 000 steps ran at batch 4 with a fresh optimizer on a smaller GPU and lost ground). Policy-only success per skill from task-consistent start states, 20 held-out seeds (eval/skilleval.py --kind smolvla): The scripted expert reaches 9/10 on the full task; the…

Read Prashant Thakur's full model card

Thali multi-task SmolVLA

lerobot/smolvla_base fine-tuned on Prashant-77/thali_all (1050 scripted-expert episodes, 7 skills, language-conditioned, 3 cameras). Camera keys are renamed at train and inference time: overhead → camera1, wrist_a → camera2, wrist_b → camera3 (--rename_map; runtime/executors.py applies the same map).

Checkpoints in this repo. Root = 20 000 total steps. step_14000/ = the best per-skill checkpoint (14 000 steps at batch 16 on a T4; the last 6 000 steps ran at batch 4 with a fresh optimizer on a smaller GPU and lost ground).

Policy-only success per skill from task-consistent start states, 20 held-out seeds (eval/skill_eval.py --kind smolvla):

skill step 14 000 step 20 000
open_drawer 14/20 11/20
pick_place_fork 0/20 0/20
pick_place_plate 2/20 0/20
pick_place_mug 0/20 0/20
handoff_spoon 0/20 0/20
hold_mug 8/20 3/20
pour 0/20 0/20

The scripted expert reaches 9/10 on the full task; the per-skill ACT baselines at 50k steps reach drawer 20/20, hold 18/20, plate 15/20, fork 14/20. Repository, evaluation scripts and every results file: https://github.com/Prashant-thakur77/THALI

Identity and Version

Repository
Prashant-77/thali_smolvla
Publisher
Prashant Thakur
Task
Robotics
Modality
Control
Library
lerobot
Parameters
450M parameters
Languages
vla
Revision
aaaa0f99efcc74728d07f5c80a9948736b30e33c
First published
2026-09-16
Last updated
2026-09-18

Files and Weights

17 files, 1.8 GB in total. The weights are 6 files totalling 1.8 GB in safetensors.

Weights6 files · 1.8 GB
Configuration8 files · 24.2 KB
Documentation1 file · 1.5 KB
Other1 file · 173 B
Repository1 file · 1.5 KB
Every file
FileTypeSizeSHA-256
model.safetensorsWeights906.7 MB c2180a172206
policy_postprocessor_step_0_unnormalizer_processor.safetensorsWeights9.1 KB 5705a94cb352
policy_preprocessor_step_5_normalizer_processor.safetensorsWeights9.1 KB 5705a94cb352
step_14000/model.safetensorsWeights906.7 MB 3fe386dce090
step_14000/policy_postprocessor_step_0_unnormalizer_processor.safetensorsWeights9.1 KB 5705a94cb352
step_14000/policy_preprocessor_step_5_normalizer_processor.safetensorsWeights9.1 KB 5705a94cb352
config.jsonConfiguration2.5 KB
policy_postprocessor.jsonConfiguration661 B
policy_preprocessor.jsonConfiguration2.1 KB
step_14000/config.jsonConfiguration2.5 KB
step_14000/policy_postprocessor.jsonConfiguration661 B
step_14000/policy_preprocessor.jsonConfiguration2.1 KB
step_14000/train_config.jsonConfiguration6.8 KB
train_config.jsonConfiguration6.8 KB
README.mdDocumentation1.5 KB
TRAINING_STEP.txtOther173 B
.gitattributesRepository1.5 KB

License and Download

License
apache-2.0
Access
Open weights, no gate
Download size
1.8 GB
Download from Prashant Thakur

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

Built From

Memory Requirements

PrecisionWeights in memory
As published1.8 GB
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 thali_smolvla

How much GPU memory does thali_smolvla 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 thali_smolvla 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 thali_smolvla commercially?

Yes. thali_smolvla 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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