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Open-weight model · Tabular classification

rt-j

by Stanford Tabular and Relational (STAR) Project stanford-star/rt-j

Parameters86M
Context
Weights171.2 MB
Licensecc-by-nc-sa-4.0
AccessOpen weights
Monthly Downloads78

Runs On

What it takes to serve rt-j (86M 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 0.2 GB 0.2 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 0.1 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 Sep 18, 2026.

Model Card

The publisher has not written a card for this model.

Identity and Version

Repository
stanford-star/rt-j
Publisher
Stanford Tabular and Relational (STAR) Project
Task
Tabular classification
Modality
Tabular
Library
Not stated by the source
Parameters
86M parameters
Languages
few-shot
Revision
360798f5335975fdcae73e3ed58cf03366dbc082
First published
2026-06-30
Last updated
2026-09-14

Files and Weights

5 files, 171.2 MB in total. The weights are 1 file totalling 171.2 MB in safetensors.

Weights1 file · 171.2 MB
Configuration1 file · 273 B
Documentation2 files · 21.2 KB
Repository1 file · 1.5 KB
Every file
FileTypeSizeSHA-256
model.safetensorsWeights171.2 MB 67b06ac84830
config.jsonConfiguration273 B
LICENSEDocumentation20.9 KB
README.mdDocumentation390 B
.gitattributesRepository1.5 KB

License and Download

License
cc-by-nc-sa-4.0
Access
Open weights, no gate
Download size
171.2 MB
Download from Stanford Tabular and Relational (STAR) Project

Released by Stanford Tabular and Relational (STAR) Project through its official repository on Hugging Face.

Built From

  • Trained on (disclosed) stanford-star/relbench
  • Trained on (disclosed) stanford-star/the-join

Memory Requirements

PrecisionWeights in memory
As published171.2 MB
16-bit0.2 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 rt-j

How much GPU memory does rt-j need?

About 0.2 GB at 16-bit and 0.1 GB at 4-bit: the weights (86M parameters) plus a working margin. A long context needs more.

What is the cheapest GPU to run rt-j 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 rt-j commercially?

Not without separate permission. rt-j is released under Creative Commons Attribution-NonCommercial-ShareAlike 4.0. CC BY-NC-SA 4.0 permits non-commercial sharing and adapting with credit, and requires adaptations to use the same license. Commercial use needs separate permission.

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