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Open-weight model

act_stable_elevator_btn1_2

by Jack Zheng LuBuCat/act_stable_elevator_btn1_2

act_stable_elevator_btn1_2 is an open-weight model from Jack Zheng. It has 52M parameters. At 16-bit it needs about 0.1 GB of GPU memory, which fits on 1x MI300X from $1.85 an hour, at the lowest prices in the SAVRN Index.

Parameters52M
Context—
Weights206.7 MB
License—
AccessOpen weights
Monthly Downloads—

Runs On

What it takes to serve act_stable_elevator_btn1_2 (52M 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 0.1 GB 0.1 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00
8-bit 0.1 GB 0.1 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00
4-bit 0.0 GB 0.0 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 22, 2026.

act_stable_elevator_btn1_2 on every accelerator the SAVRN Index prices, at every precision

Model Card

The publisher has not written a card for this model.

Identity and Version

Repository
LuBuCat/act_stable_elevator_btn1_2
Publisher
Jack Zheng
Task
Not stated by the source
Modality
Other
Library
Not stated by the source
Parameters
52M parameters
Languages
Not stated by the source
Revision
49b5e75d089e5f44b0c24f433d336f4a7cbbff97
First published
2026-09-21
Last updated
2026-09-21

Files and Weights

8 files, 206.7 MB in total. The weights are 3 files totalling 206.7 MB in safetensors.

Weights3 files · 206.7 MB
Configuration4 files · 9.9 KB
Repository1 file · 1.5 KB
Every file
FileTypeSizeSHA-256
model.safetensorsWeights206.7 MB 5c009fa3c125
policy_postprocessor_step_0_unnormalizer_processor.safetensorsWeights7.6 KB fecb4a31cad0
policy_preprocessor_step_3_normalizer_processor.safetensorsWeights7.6 KB fecb4a31cad0
config.jsonConfiguration1.9 KB —
policy_postprocessor.jsonConfiguration691 B —
policy_preprocessor.jsonConfiguration1.4 KB —
train_config.jsonConfiguration6.0 KB —
.gitattributesRepository1.5 KB —

License and Download

License
Not stated by the source
Access
Open weights, no gate
Download size
206.7 MB
Download from Jack Zheng

Released by Jack Zheng through its official repository on Hugging Face.

Memory Requirements

PrecisionWeights in memory
As published206.7 MB
16-bit0.1 GB
8-bit0.1 GB
4-bit0.0 GB

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

Questions About act_stable_elevator_btn1_2

How much GPU memory does act_stable_elevator_btn1_2 need?

About 0.1 GB at 16-bit and 0 GB at 4-bit: the weights (52M parameters) plus a working margin. A long context needs more.

What is the cheapest GPU to run act_stable_elevator_btn1_2 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.