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Open-weight model · Robotics

GigaBrain-0.7-3.5B-Base

by GigaAI open-gigaai/GigaBrain-0.7-3.5B-Base

GigaBrain-0.7-3.5B-Base is an open-weight model for robotics from GigaAI, released under Apache License 2.0. It has 4.1B parameters. At 16-bit it needs about 9.9 GB of GPU memory, which fits on 1x MI300X from $1.85 an hour, at the lowest prices in the SAVRN Index. It draws 6k downloads a month.

Vision-language-action (VLA) models have become a dominant paradigm for generalist embodied agents, demonstrating strong complex and long-horizon task completion in structured settings.

Parameters4.1B
Context—
Weights33.0 GB
Licenseapache-2.0
AccessOpen weights
Monthly Downloads6k

Runs On

What it takes to serve GigaBrain-0.7-3.5B-Base (4.1B 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 8.2 GB 9.9 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00
8-bit 4.1 GB 4.9 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00
4-bit 2.1 GB 2.5 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 16, 2026.

GigaBrain-0.7-3.5B-Base on every accelerator the SAVRN Index prices, at every precision

Model Card

By GigaAI, published under apache-2.0, revision 2936d6f26327.

GigaBrain-0.7: Scaling Embodied Foundation Models to Emergent Capabilities with a Three-System Architecture

[![License](https://img.shields.io/badge/License-Apache_2.0-blue.svg)](https://opensource.org/licenses/Apache-2.0) [![Project](https://img.shields.io/badge/Project-Page-99cc2)](https://gigaai.cc/blog/gigabrain07) [![arXiv](https://img.shields.io/badge/arXiv-2608.15875-b31b1b.svg)](https://arxiv.org/abs/2608.15875) [![Paper](https://img.shields.io/badge/Paper-Technical_Report-99cc2)](https://github.com/open-gigaai/giga-brain-0/blob/main/tech_report/GigaBrain-0.7.pdf) [![Models](https://img.shields.io/badge/HuggingFace-Models-yellow?logo=huggingface)](https://huggingface.co/open-gigaai/GigaBrain-0.7-3.5B-Base) [![DataSets](https://img.shields.io/badge/HuggingFace-Data-yellow?logo=huggingface)](https://huggingface.co/datasets/open-gigaai/GigaBrain-0.7-SampleData)

Introduction

Read the full model card (211 words)

Identity and Version

Repository
open-gigaai/GigaBrain-0.7-3.5B-Base
Publisher
GigaAI
Task
Robotics
Modality
Control
Library
diffusers
Parameters
4.1B parameters
Languages
en
Revision
2936d6f263279a58d4f9153b2efa597812c194cb
First published
2026-08-24
Last updated
2026-08-25

Files and Weights

10 files, 33.0 GB in total. The weights are 5 files totalling 33.0 GB in bin, safetensors.

Weights5 files · 33.0 GB
Configuration2 files · 137.6 KB
Documentation1 file · 3.0 KB
Other1 file · 2.3 MB
Repository1 file · 1.6 KB
Every file
FileTypeSizeSHA-256
diffusion_pytorch_model-00001-of-00004.safetensorsWeights5.0 GB 223bda49a0a0
diffusion_pytorch_model-00002-of-00004.safetensorsWeights4.9 GB 9fb0122adfd0
diffusion_pytorch_model-00003-of-00004.safetensorsWeights4.2 GB 7db9419afed9
diffusion_pytorch_model-00004-of-00004.safetensorsWeights2.4 GB 02506a600cbf
diffusion_pytorch_model.binWeights16.5 GB d8270bd58cf1
config.jsonConfiguration1.9 KB —
diffusion_pytorch_model.safetensors.index.jsonConfiguration135.7 KB —
README.mdDocumentation3.0 KB —
gigabrain07_arch.pngOther2.3 MB 39da63661083
.gitattributesRepository1.6 KB —

License and Download

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

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

Built From

  • Described by arXiv:2608.15875

Memory Requirements

PrecisionWeights in memory
As published33.0 GB
16-bit8.2 GB
8-bit4.1 GB
4-bit2.1 GB

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

Questions About GigaBrain-0.7-3.5B-Base

How much GPU memory does GigaBrain-0.7-3.5B-Base need?

About 9.9 GB at 16-bit and 2.5 GB at 4-bit: the weights (4.1B parameters) plus a working margin. A long context needs more.

What is the cheapest GPU to run GigaBrain-0.7-3.5B-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 GigaBrain-0.7-3.5B-Base commercially?

Yes. GigaBrain-0.7-3.5B-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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