Segatron -XL base, M=150 + HCP

Closed weights Microsoft Research,University of Waterloo 151M parameters March 2022

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
Microsoft Research,University of Waterloo
Organisation type
Industry,Academia
Country
United States of America, Canada
Published
21 March 2022
Authors
He Bai, Tong Wang, Alessandro Sordoni, Peng Shi

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
151M

Table 1 reports WikiText results, Table 2 arxiv. WikiText experiments use the larger model of the two.

Training data
103,000,000 tokens
Epochs
18.64

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
1.7 × 10¹⁸ FLOP

"base model: 16 layers, 10 heads, hidden size 410, batch size 64, training steps 200k;" "The input lengths are 150 for the base model and 384 for the large model. " 6ND estimate: 6*200000*64*150*151000000=1.73952e+18

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
Open (non-commercial)

code, no license: https://github.com/richardbaihe/robustLM

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
17
Benchmark data
Segatron -XL base, M=150 + HCP

Sources

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

Reference
Better Language Model with Hypernym Class Prediction
Last updated
25 May 2026

What the numbers mean

About this model

Segatron -XL base, M=150 + HCP was published by Microsoft Research,University of Waterloo, in United States of America, in March 2022. The organisation is categorised as industry,Academia.

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

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

What went into building it

The training run consumed about 1.7 × 10¹⁸ FLOP. That figure describes the cost of creating it and has no bearing on how quickly it generates text.

Around 103,000,000 tokens went into training it.

Answers

Segatron -XL base, M=150 + HCP — common questions

01

What GPU do I need to run Segatron -XL base, M=150 + HCP?

None. Segatron -XL base, M=150 + HCP 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.

02

Is Segatron -XL base, M=150 + HCP open source?

No. Segatron -XL base, M=150 + HCP has not had its weights published, so it exists only as a service controlled by its owner.

03

How many parameters does Segatron -XL base, M=150 + HCP have?

Segatron -XL base, M=150 + HCP has 151M parameters. Table 1 reports WikiText results, Table 2 arxiv. WikiText experiments use the larger model of the two. 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.

04

Who created Segatron -XL base, M=150 + HCP?

Segatron -XL base, M=150 + HCP was published by Microsoft Research,University of Waterloo, based in United States of America, categorised as industry,Academia.

05

When was Segatron -XL base, M=150 + HCP released?

Segatron -XL base, M=150 + HCP was published in March 2022. Capability per parameter has improved considerably since, so a newer model of the same size is often the better use of the same hardware.

06

What is Segatron -XL base, M=150 + HCP used for?

Segatron -XL base, M=150 + HCP works in Language, and is recorded as handling language modeling. These are the areas it was designed around; they describe intent rather than a hard boundary.

07

How much compute was used to train Segatron -XL base, M=150 + HCP?

Around 1.7 × 10¹⁸ 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.

Source

Original publication

Record last updated 25 May 2026

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