LSTM-Medium+Behaviorial-Gating (PTB)

Closed weights University of Southern California 20M parameters August 2019

No estimate

No hardware requirements for this model

The weights for this model have not been published, so it cannot be downloaded or run on your own hardware at any size. It is reachable only through its provider, and no graphics card changes that.

On record

Full specification

Everything on record for this model. Most of it describes how it was trained rather than how it runs — useful context for judging how much work went into it, and how it compares with models built at a different scale.

Origin

Who built this model, where, and when it was published.

Organisation
University of Southern California
Organisation type
Academia
Country
United States of America
Published
31 August 2019
Authors
Prashanth Gurunath Shivakumar, Shao-Yen Tseng, Panayiotis Georgiou, Shrikanth Narayanan

What it does

The problem areas the model was built for. A model can carry several of each.

Domain
Language
Task
Language modeling

Size

How large the model is and how much data it was trained on. Parameters are the figure that decides whether it fits on a given graphics card.

Parameters
20M
Training data
929,000 tokens

Availability

Whether you can obtain the model and run it on your own hardware, which is what decides if any of the graphics-card figures on this page apply.

Weights
Closed — provider access only
Model access
Unreleased
Training code
Unreleased

How it is classified

Labels the source dataset applies when tracking notable models, and how confident it is in the entry.

Record confidence
Confident
Benchmark data
LSTM-Medium+Behaviorial-Gating

Sources

Where this record came from and when it was last checked.

Reference
Behavior Gated Language Models
Last updated
11 February 2026

What the numbers mean

Where it came from

LSTM-Medium+Behaviorial-Gating (PTB) was published by University of Southern California, in the country recorded as United States of America, during August 2019. The publishing organisation is categorised as academia.

It works in the domain of Language, and is recorded as performing the task of language modeling.

This is a closed model: the trained values stayed with whoever produced them, and there is no local version to run.

Training and provenance

It was trained on a corpus of about 929,000 tokens of text.

Answers

LSTM-Medium+Behaviorial-Gating (PTB) — common questions

01

LSTM-Medium+Behaviorial-Gating (PTB)— is it open source?

No. Its weights have not been published, so it exists only as a service controlled by its owner.

02

LSTM-Medium+Behaviorial-Gating (PTB)— how many parameters does it have?

It has a parameter count of 20M. That figure is the total, and it is what decides how much memory the model needs — roughly half a gigabyte per billion at the compression most people use.

03

LSTM-Medium+Behaviorial-Gating (PTB)— who created it?

It was published by University of Southern California, based in United States of America, an organisation categorised as academia.

04

LSTM-Medium+Behaviorial-Gating (PTB)— when was it released?

It was published in August 2019. Capability per parameter has improved considerably since, so a newer model of the same size is often the better use of the same hardware.

05

LSTM-Medium+Behaviorial-Gating (PTB)— what is it used for?

It works in the domain of Language, and is recorded as handling the task of language modeling. A model can carry several of each, so these are the areas it was built for rather than a limit on what it will attempt.

06

LSTM-Medium+Behaviorial-Gating (PTB)— what GPU do I need to run it?

None. This is a closed model — its weights were never published, so it cannot be downloaded or run on your own hardware at any price. It is reachable only through its provider.

Source

Original publication

Record last updated 11 February 2026

The other direction

Looking at it from the other side?

This page starts from the model. If you already own a card and want to know everything it will run, start from the hardware instead.