VD-RHN

Closed weights ETH Zurich,IDSIA 32M parameters July 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
ETH Zurich,IDSIA
Organisation type
Academia,Academia
Country
Switzerland
Published
12 July 2016
Authors
Julian Georg Zilly, Rupesh Kumar Srivastava, Jan Koutník, Jürgen Schmidhuber

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
32M

"To examine the effect of recurrence depth we train RHNs with fixed total parameters (32 M)"

Training data
929,000 tokens

"Batch size was fixed to 20, sequence length for truncated backpropagation to 35, learning rate to 0.2, learning rate decay to 1.02 starting at 20 epochs, weight decay to 1e-7 and maximum gradient norm to 10."

Epochs
20

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
3.6 × 10¹⁵ FLOP

6 FLOP / parameter / token * 32000000 parameters * 929000 tokens * 20 epochs = 3.56736e+15 FLOP

How it was established
Operation counting

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 source

MIT for code: https://github.com/jzilly/RecurrentHighwayNetworks

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
493
Benchmark data
VD-RHN

Sources

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

Reference
Recurrent Highway Networks
Last updated
28 November 2025

What the numbers mean

About this model

VD-RHN was published by ETH Zurich,IDSIA, in Switzerland, in July 2016. The organisation is categorised as academia,Academia.

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.

Training and provenance

Training it took roughly 3.6 × 10¹⁵ FLOP of computation — a measure of what producing the model cost, not of how fast it answers.

Around 929,000 tokens went into training it.

Answers

VD-RHN — common questions

01

Is VD-RHN open source?

No. VD-RHN has not had its weights published, so it exists only as a service controlled by its owner.

02

How many parameters does VD-RHN have?

VD-RHN has 32M parameters. "To examine the effect of recurrence depth we train RHNs with fixed total parameters (32 M)". 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 VD-RHN?

VD-RHN was published by ETH Zurich,IDSIA, based in Switzerland, categorised as academia,Academia.

04

When was VD-RHN released?

VD-RHN was published in July 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 VD-RHN used for?

VD-RHN works in Language, and is recorded as handling 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

How much compute was used to train VD-RHN?

Around 3.6 × 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 VD-RHN?

None. VD-RHN 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 28 November 2025

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