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Open-weight model · Robotics

rldx2_rldximg_robotwin_b128_60k

by KOO, MYUNGKYU Myungkyu/rldx2_rldximg_robotwin_b128_60k

rldx2_rldximg_robotwin_b128_60k is an open-weight model for robotics from KOO, MYUNGKYU. It has 6.9B parameters. At 16-bit it needs about 16.6 GB of GPU memory, which fits on 1x MI300X from $1.85 an hour, at the lowest prices in the SAVRN Index.

Vanilla baseline for the RLDX-2 project: RoboTwin 2.0 leaderboard co-train setting (50 tasks x 50 democlean episodes, Aloha-AgileX, official LeRobot export).

Parameters6.9B
Context—
Weights55.3 GB
License—
AccessOpen weights
Monthly Downloads—

Runs On

What it takes to serve rldx2_rldximg_robotwin_b128_60k (6.9B 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 13.8 GB 16.6 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00
8-bit 6.9 GB 8.3 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00
4-bit 3.5 GB 4.1 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 Oct 20, 2026.

rldx2_rldximg_robotwin_b128_60k on every accelerator the SAVRN Index prices, at every precision

Model Card

Vanilla baseline for the RLDX-2 project: RoboTwin 2.0 leaderboard co-train setting (50 tasks x 50 democlean episodes, Aloha-AgileX, official LeRobot export). - Optimizer batch 128, 60000 steps, final checkpoint (optimizer state not included) Configs reference the base backbone / tokenizer by hub id.

Excerpt from the card by KOO, MYUNGKYU.

Configuration

Architecture
RLDX
Model type
RLDX-1

Identity and Version

Repository
Myungkyu/rldx2_rldximg_robotwin_b128_60k
Publisher
KOO, MYUNGKYU
Task
Robotics
Modality
Control
Library
Not stated by the source
Parameters
6.9B parameters
Languages
vla
Revision
c30f9b3e6a6f61bb2922bd01456e5ef1d0000416
First published
2026-10-09
Last updated
2026-10-09

Files and Weights

58 files, 55.3 GB in total. The weights are 12 files totalling 55.3 GB in safetensors.

Weights12 files · 55.3 GB
Configuration40 files · 3.3 MB
Documentation1 file · 901 B
Other4 files · 5.1 KB
Repository1 file · 1.5 KB
Every file
FileTypeSizeSHA-256
checkpoints/step-10000/model-00001-of-00003.safetensorsWeights4.9 GB b672b0706e7c
checkpoints/step-10000/model-00002-of-00003.safetensorsWeights4.4 GB 007780771e09
checkpoints/step-10000/model-00003-of-00003.safetensorsWeights4.5 GB 5e0eb686ecc7
checkpoints/step-15000/model-00001-of-00003.safetensorsWeights4.9 GB 97435704e49e
checkpoints/step-15000/model-00002-of-00003.safetensorsWeights4.4 GB 96d0a639b975
checkpoints/step-15000/model-00003-of-00003.safetensorsWeights4.5 GB b3e4ae5e4ccb
checkpoints/step-5000/model-00001-of-00003.safetensorsWeights4.9 GB 1d77c1206a37
checkpoints/step-5000/model-00002-of-00003.safetensorsWeights4.4 GB a679ad280bca
checkpoints/step-5000/model-00003-of-00003.safetensorsWeights4.5 GB a74b904ebf94
model-00001-of-00003.safetensorsWeights4.9 GB 012b2f1e9569
model-00002-of-00003.safetensorsWeights4.4 GB e342008a0ea0
model-00003-of-00003.safetensorsWeights4.5 GB ff8305aacb0f
checkpoints/step-10000/config.jsonConfiguration2.7 KB —
checkpoints/step-10000/experiment_cfg/conf.yamlConfiguration8.1 KB —
checkpoints/step-10000/experiment_cfg/config.yamlConfiguration9.0 KB —
checkpoints/step-10000/experiment_cfg/dataset_statistics.jsonConfiguration8.5 KB —
checkpoints/step-10000/experiment_cfg/final_model_config.jsonConfiguration3.9 KB —
checkpoints/step-10000/experiment_cfg/final_processor_config.jsonConfiguration454.8 KB —
checkpoints/step-10000/model.safetensors.index.jsonConfiguration76.3 KB —
checkpoints/step-10000/processor/embodiment_id.jsonConfiguration1.1 KB —
checkpoints/step-10000/processor/processor_config.jsonConfiguration71.7 KB —
checkpoints/step-10000/processor/statistics.jsonConfiguration190.6 KB —
checkpoints/step-15000/config.jsonConfiguration2.7 KB —
checkpoints/step-15000/experiment_cfg/conf.yamlConfiguration8.1 KB —
checkpoints/step-15000/experiment_cfg/config.yamlConfiguration9.0 KB —
checkpoints/step-15000/experiment_cfg/dataset_statistics.jsonConfiguration8.5 KB —
checkpoints/step-15000/experiment_cfg/final_model_config.jsonConfiguration3.9 KB —
checkpoints/step-15000/experiment_cfg/final_processor_config.jsonConfiguration454.8 KB —
checkpoints/step-15000/model.safetensors.index.jsonConfiguration76.3 KB —
checkpoints/step-15000/processor/embodiment_id.jsonConfiguration1.1 KB —
checkpoints/step-15000/processor/processor_config.jsonConfiguration71.7 KB —
checkpoints/step-15000/processor/statistics.jsonConfiguration190.6 KB —
checkpoints/step-5000/config.jsonConfiguration2.7 KB —
checkpoints/step-5000/experiment_cfg/conf.yamlConfiguration8.1 KB —
checkpoints/step-5000/experiment_cfg/config.yamlConfiguration9.0 KB —
checkpoints/step-5000/experiment_cfg/dataset_statistics.jsonConfiguration8.5 KB —
checkpoints/step-5000/experiment_cfg/final_model_config.jsonConfiguration3.9 KB —
checkpoints/step-5000/experiment_cfg/final_processor_config.jsonConfiguration454.8 KB —
checkpoints/step-5000/model.safetensors.index.jsonConfiguration76.3 KB —
checkpoints/step-5000/processor/embodiment_id.jsonConfiguration1.1 KB —
checkpoints/step-5000/processor/processor_config.jsonConfiguration71.7 KB —
checkpoints/step-5000/processor/statistics.jsonConfiguration190.6 KB —
config.jsonConfiguration2.7 KB —
experiment_cfg/conf.yamlConfiguration8.1 KB —
experiment_cfg/config.yamlConfiguration9.0 KB —
experiment_cfg/dataset_statistics.jsonConfiguration8.5 KB —
experiment_cfg/final_model_config.jsonConfiguration3.9 KB —
experiment_cfg/final_processor_config.jsonConfiguration454.8 KB —
model.safetensors.index.jsonConfiguration76.3 KB —
processor/embodiment_id.jsonConfiguration1.1 KB —
processor/processor_config.jsonConfiguration71.7 KB —
processor/statistics.jsonConfiguration190.6 KB —
README.mdDocumentation901 B —
SHA256SUMSOther1.3 KB —
checkpoints/step-10000/SHA256SUMSOther1.3 KB —
checkpoints/step-15000/SHA256SUMSOther1.3 KB —
checkpoints/step-5000/SHA256SUMSOther1.3 KB —
.gitattributesRepository1.5 KB —

License and Download

License
Not stated by the source
Access
Open weights, no gate
Download size
55.3 GB
Download from KOO, MYUNGKYU

Released by KOO, MYUNGKYU through its official repository on Hugging Face.

Built From

  • Derived from RLWRLD/RLDX-1-PT
  • Trained on (disclosed) TianxingChen/RoboTwin2.0

Memory Requirements

PrecisionWeights in memory
As published55.3 GB
16-bit13.8 GB
8-bit6.9 GB
4-bit3.5 GB

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

Questions About rldx2_rldximg_robotwin_b128_60k

How much GPU memory does rldx2_rldximg_robotwin_b128_60k need?

About 16.6 GB at 16-bit and 4.1 GB at 4-bit: the weights (6.9B parameters) plus a working margin. A long context needs more.

What is the cheapest GPU to run rldx2_rldximg_robotwin_b128_60k 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.

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