Transformer ELMo

Closed weights Allen Institute for AI,University of Washington 56M parameters January 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
Allen Institute for AI,University of Washington
Organisation type
Research collective,Academia
Country
United States of America
Published
1 January 2019
Authors
ME Peters, M Neumann, L Zettlemoyer, W Yih

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
56M
Training data
2,000,000,000 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.

Why it is tracked
SOTA improvement

"Our model is the Reconciled Span Parser (RSP; Joshi et al., 2018), which, using ELMo representations, achieved state of the art performance for this task. As shown in Table 2, the LSTM based models demonstrate the best performance with a 0.2% and 1.0% improvement over the Transformer and CNN models, respectively"

Record confidence
Confident
Citations
459

Sources

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

Reference
Dissecting Contextual Word Embeddings: Architecture and Representation
Last updated
1 January 2026

What the numbers mean

What this model is

Transformer ELMo was published by Allen Institute for AI,University of Washington, in the country recorded as United States of America, during January 2019. The category the publisher falls under is research collective,Academia.

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

Because the weights are not available, none of the hardware figures elsewhere on this site apply to it.

What went into building it

It was trained on a corpus of about 2,000,000,000 tokens of text.

The reason it appears in this catalogue at all: sOTA improvement.

Answers

Transformer ELMo — common questions

01

Transformer ELMo— when was it released?

It was published in January 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.

02

Transformer ELMo— what is it used for?

It works in the domain of Language, and is recorded as handling the task of language modeling. These are the areas it was designed around; they describe intent rather than a hard boundary.

03

Transformer ELMo— 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.

04

Transformer ELMo— is it open source?

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

05

Transformer ELMo— how many parameters does it have?

It has a parameter count of 56M. 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.

06

Transformer ELMo— who created it?

It was published by Allen Institute for AI,University of Washington, based in United States of America, an organisation categorised as research collective,Academia.

Source

Original publication

Record last updated 1 January 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.