ProtSSN

Closed weights Shanghai Jiao Tong University,East China University of Science and Technology,Shanghai AI Lab 1.5B parameters September 2024

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
Shanghai Jiao Tong University,East China University of Science and Technology,Shanghai AI Lab
Organisation type
Academia,Academia,Academia
Country
China
Published
6 September 2024
Authors
Yang Tan, Bingxin Zhou, Lirong Zheng, Guisheng Fan, Liang Hong

What it does

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

Domain
Biology
Task
Protein design

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
1.5B
Training data
tokens

30,948 proteins * 300 amino acids/protein = 9,284,400 tokens ≈ 1.2e7 tokens 30,948 * 300 = 9,284,400

The training run

What it physically took to train: which chips, how many, for how long, and what that drew from the wall.

Training hardware
NVIDIA A100
Chips used
1
Power draw
433 W

How it is classified

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

Record confidence
Likely
Citations
7

Sources

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

Reference
Semantical and Geometrical Protein Encoding Toward Enhanced Bioactivity and Thermostability
Last updated
28 November 2025

What the numbers mean

Where it came from

ProtSSN was published by Shanghai Jiao Tong University,East China University of Science and Technology,Shanghai AI Lab, in China, in September 2024. It comes out of academia,Academia,Academia.

It works in Biology, and is recorded as doing protein design.

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

Answers

ProtSSN — common questions

01

Who created ProtSSN?

ProtSSN was published by Shanghai Jiao Tong University,East China University of Science and Technology,Shanghai AI Lab, based in China, categorised as academia,Academia,Academia.

02

When was ProtSSN released?

ProtSSN was published in September 2024. Capability per parameter has improved considerably since, so a newer model of the same size is often the better use of the same hardware.

03

What is ProtSSN used for?

ProtSSN works in Biology, and is recorded as handling protein design. 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.

04

What GPU do I need to run ProtSSN?

None. ProtSSN 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.

05

Is ProtSSN open source?

The licensing for ProtSSN was never recorded in our source data. We treat unstated licensing as closed, because an unrecorded licence is not one to rely on.

06

How many parameters does ProtSSN have?

ProtSSN has 1.5B 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.

Source

Original publication

Record last updated 28 November 2025

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