SAVRN
Search Contact SAVRN

Open-weight model · Robotics

Giga-World-Policy-0.5

by GigaAI open-gigaai/Giga-World-Policy-0.5

The MoT design keeps a visual expert stream (reference + future latents) and an action expert stream (state + action), with multi-modal self-attention across both. Weights are sharded at ~10GB per file.

Parameters6B
Context
Weights24.1 GB
Licenseapache-2.0
AccessOpen weights
Monthly Downloads3.8k

Runs On

What it takes to serve Giga-World-Policy-0.5 (6B 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 12.0 GB 14.5 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00
8-bit 6.0 GB 7.2 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00
4-bit 3.0 GB 3.6 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 GigaAI, published under apache-2.0, revision b130a71b01ce.

The MoT design keeps a visual expert stream (reference + future latents) and an action expert stream (state + action), with multi-modal self-attention across both. Weights are sharded at ~10GB per file. This repo contains the transformer only; runtime also needs the Wan2.2 VAE / scheduler from the base Diffusers checkpoint. For usage, training, and inference details, see our open source code page.

Read GigaAI's full model card

GigaWorld-Policy-0.5: A Faster and Stronger WAM Empowered by AutoResearch

Model summary

Field Value
Class CasualWorldActionTransformer_MoT
Layers 30
Attention heads 24 × 128
Visual hidden dim 3072
Action expert dim 1024
Action FFN dim 4096
Latent channels 48 (in/out)
Action channels 16 (in/out)
Embodiments 2
Text dim (T5) 4096
Patch size [1, 2, 2]

The MoT design keeps a visual expert stream (reference + future latents) and an action expert stream (state + action), with multi-modal self-attention across both.

Files

config.json
diffusion_pytorch_model.safetensors.index.json
diffusion_pytorch_model-00001-of-00003.safetensors
diffusion_pytorch_model-00002-of-00003.safetensors
diffusion_pytorch_model-00003-of-00003.safetensors

Weights are sharded at ~10GB per file. This repo contains the transformer only; runtime also needs the Wan2.2 VAE / scheduler from the base Diffusers checkpoint.

Download

# Hugging Face CLI
huggingface-cli download open-gigaai/Giga-World-Policy-0.5 --local-dir ./Giga-World-Policy-0.5

# or Git LFS
git lfs install
git clone https://huggingface.co/open-gigaai/Giga-World-Policy-0.5

Python:

from huggingface_hub import snapshot_download

snapshot_download(
    repo_id="open-gigaai/Giga-World-Policy-0.5",
    local_dir="./Giga-World-Policy-0.5",
)

For usage, training, and inference details, see our open source code page.

Citation

@article{gigaworld-policy-0.5,
  title={GigaWorld-Policy-0.5: A Faster and Stronger WAM Empowered by AutoResearch},
  author={Team, GigaWorld and Ye, Angen and Ma, Angyuan and Wang, Boyuan and Ni, Chaojun and Ye, Fangzheng and Huang, Guan and Li, Guo and Zhao, Guosheng and Yan, Haodong and others},
  journal={arXiv preprint arXiv:2607.13960},
  year={2026}
}

Configuration

Attention heads
24

Identity and Version

Repository
open-gigaai/Giga-World-Policy-0.5
Publisher
GigaAI
Task
Robotics
Modality
Control
Library
diffusers
Parameters
6B parameters
Languages
Not stated by the source
Revision
b130a71b01ceff08aba8c43f7f6ef5e0d4f4d368
First published
2026-07-14
Last updated
2026-07-30

Files and Weights

7 files, 24.1 GB in total. The weights are 3 files totalling 24.1 GB in safetensors.

Weights3 files · 24.1 GB
Configuration2 files · 171.2 KB
Documentation1 file · 2.4 KB
Repository1 file · 1.5 KB
Every file
FileTypeSizeSHA-256
diffusion_pytorch_model-00001-of-00003.safetensorsWeights10.0 GB 680d3eb65672
diffusion_pytorch_model-00002-of-00003.safetensorsWeights10.0 GB 5b4896545e2a
diffusion_pytorch_model-00003-of-00003.safetensorsWeights4.1 GB 1761ffea0c64
config.jsonConfiguration637 B
diffusion_pytorch_model.safetensors.index.jsonConfiguration170.6 KB
README.mdDocumentation2.4 KB
.gitattributesRepository1.5 KB

License and Download

License
apache-2.0
Access
Open weights, no gate
Download size
24.1 GB
Download from GigaAI

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

Built From

  • Described by arXiv:2607.13960

Memory Requirements

PrecisionWeights in memory
As published24.1 GB
16-bit12.0 GB
8-bit6.0 GB
4-bit3.0 GB

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

Questions About Giga-World-Policy-0.5

How much GPU memory does Giga-World-Policy-0.5 need?

About 14.5 GB at 16-bit and 3.6 GB at 4-bit: the weights (6B parameters) plus a working margin. A long context needs more.

What is the cheapest GPU to run Giga-World-Policy-0.5 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 Giga-World-Policy-0.5 commercially?

Yes. Giga-World-Policy-0.5 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.

Similar Models

This policy has been trained and pushed to the Hub using LeRobot. See the full documentation at LeRobot Docs. For a complete walkthrough, see the training guide. Below is the short version on how to train and run inference/eval: Writes checkpoints to outputs/train/ /checkpoints/. Prefix the dataset repo with eval\ and supply --policy.path pointing to a local or hub checkpoint.

Open weights apache-2.0 5.6B parameters lerobot

This policy has been trained and pushed to the Hub using LeRobot. See the full documentation at LeRobot Docs. For a complete walkthrough, see the training guide. Below is the short version on how to train and run inference/eval: Writes checkpoints to outputs/train/ /checkpoints/. Prefix the dataset repo with eval\ and supply --policy.path pointing to a local or hub checkpoint.

Open weights apache-2.0 5.6B parameters lerobot

This policy has been trained and pushed to the Hub using LeRobot. See the full documentation at LeRobot Docs. For a complete walkthrough, see the training guide. Below is the short version on how to train and run inference/eval: Writes checkpoints to outputs/train/ /checkpoints/. Prefix the dataset repo with eval\ and supply --policy.path pointing to a local or hub checkpoint.

Open weights apache-2.0 5.6B parameters lerobot

Model · Robotics

MolmoAct2-Think

Ai2

MolmoAct2-Think extends MolmoAct2 with depth-token reasoning. Before producing an action, the model can predict a compact 10 x 10 discrete depth representation and condition the action expert on the resulting depth-aware VLM cache. This checkpoint is the post-trained, multi-embodiment depth-reasoning model. It is intended as a foundation checkpoint for further robot fine-tuning rather than as a ready-to-run policy for a single deployment setting. Use this checkpoint for further fine-tuning when the downstream policy should use depth reasoning. It contains the VLM, action expert, and depth-token weights, plus normalization metadata for the post-training mixture in normstats.json. This model…

Open weights 5.4B parameters 16,384 tokens transformers

Model · Robotics

MolmoAct2

Ai2

MolmoAct2 is an open vision-language-action model for robot control. It builds on Molmo2-ER, an embodied-reasoning VLM backbone, and connects the autoregressive VLM to a flow-matching continuous action expert through per-layer KV (key-value) conditioning. This checkpoint is the post-trained, multi-embodiment MolmoAct2 model. It is intended as a foundation checkpoint for further robot fine-tuning rather than as a ready-to-run policy for a single deployment setting. Use this checkpoint for further fine-tuning on a target robot embodiment or benchmark. It contains the VLM and continuous action expert weights, plus normalization metadata for the post-training mixture in normstats.json. This…

Open weights 5.4B parameters 16,384 tokens transformers

Model · Robotics

MolmoAct2-SO100_101

Ai2

MolmoAct2 is an open vision-language-action model for robot control. It builds on Molmo2-ER and attaches a flow-matching continuous action expert that conditions on the VLM key-value cache through a per-layer connection. This checkpoint is fine-tuned on the SO-100/101 mixture with absolute joint-pose control and annotated language instructions. It is intended for both further fine-tuning and SO-100/101 policy inference. Use this checkpoint for SO-100/101 inference or for further fine-tuning. Dataset normalization metadata is stored in normstats.json. pass normtag="so100so101molmoact2" at inference time. Continuous action prediction is the intended and recommended inference mode. Discrete…

Open weights 5.4B parameters 16,384 tokens transformers