Pointer Sentinel-LSTM (WT2)

Closed weights MetaMind Inc 21M parameters September 2016

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
MetaMind Inc
Organisation type
Industry
Country
United States of America
Published
26 September 2016
Authors
Stephen Merity, Caiming Xiong, James Bradbury, Richard Socher

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
21M
Training data
tokens
Epochs
64

Training compute

The arithmetic performed to train the model, measured in floating-point operations. It is a measure of what the training run cost, not of how fast the finished model answers you.

Training compute
1.6 × 10¹⁵ FLOP

6*21000000*2000000*64=1.6128e+16

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
Citations
4,010
Benchmark data
Pointer Sentinel-LSTM

Sources

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

Reference
Pointer Sentinel Mixture Models
Last updated
25 May 2026

What the numbers mean

Background

Pointer Sentinel-LSTM (WT2) was published by MetaMind Inc, in United States of America, in September 2016. It comes out of industry.

It works in Language, and is recorded as doing language modeling.

Its weights were never published, so it can only be reached through its provider. No graphics card changes that.

What went into building it

Producing it required around 1.6 × 10¹⁵ FLOP of arithmetic, which is a statement about the training budget rather than about inference.

Answers

Pointer Sentinel-LSTM (WT2) — common questions

01

Is Pointer Sentinel-LSTM (WT2) open source?

No. Pointer Sentinel-LSTM (WT2) has not had its weights published, so it exists only as a service controlled by its owner.

02

How many parameters does Pointer Sentinel-LSTM (WT2) have?

Pointer Sentinel-LSTM (WT2) has 21M parameters. 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

Who created Pointer Sentinel-LSTM (WT2)?

Pointer Sentinel-LSTM (WT2) was published by MetaMind Inc, based in United States of America, categorised as industry.

04

When was Pointer Sentinel-LSTM (WT2) released?

Pointer Sentinel-LSTM (WT2) was published in September 2016. 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

What is Pointer Sentinel-LSTM (WT2) used for?

Pointer Sentinel-LSTM (WT2) works in Language, and is recorded as handling language modeling. Models frequently carry more than one of each, and the tags describe purpose rather than capability limits.

06

How much compute was used to train Pointer Sentinel-LSTM (WT2)?

Around 1.6 × 10¹⁵ FLOP. That measures what producing the model cost and says nothing about how quickly it answers once trained — inference speed comes from memory bandwidth, not from the training budget.

07

What GPU do I need to run Pointer Sentinel-LSTM (WT2)?

None. Pointer Sentinel-LSTM (WT2) 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 25 May 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.