DDIM

Closed weights University Paris-Saclay,Radboud University Medical Center April 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
University Paris-Saclay,Radboud University Medical Center
Organisation type
Academia,Academia
Country
France, Netherlands
Published
13 April 2024
Authors
Alice Lacan, Romain André, Michele Sebag, Blaise Hanczar

What it does

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

Domain
Biology
Task
Gene expression profile generation

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.

Training data
9,541,304 tokens

TCGA: 6,499 × 978 = 6,356,022 GTEx: 9,796 × 974 = 9,541,304 Total: 6,356,022 + 9,541,304 = 15,897,326 ≈ 1.6e7 datapoints

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
9 × 10¹⁷ FLOP

1. Hardware setup: 1x NVIDIA A40 GPU (1.50×10¹⁴ FLOP/s per GPU) 2. Training duration: 15,000 seconds (directly provided - sum of TCGA training: 3,780s and GTEx training: 11,220s) 3. Utilization rate: 40% 4. Calculation: 1.50×10¹⁴ FLOP/s × 1 GPU × 15,000s × 0.4 = 9.0×10¹⁷ FLOPs

How it was established
Hardware

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

Sources

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

Reference
In Silico Generation of Gene Expression profiles using Diffusion Models
Last updated
28 November 2025

What the numbers mean

Background

DDIM was published by University Paris-Saclay,Radboud University Medical Center, in France, in April 2024. academia,Academia is the category the publisher falls under.

It works in Biology, and is recorded as doing gene expression profile generation.

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

How it was trained

Training it took roughly 9 × 10¹⁷ FLOP of computation — a measure of what producing the model cost, not of how fast it answers.

Around 9,541,304 tokens went into training it.

Answers

DDIM — common questions

01

Who created DDIM?

DDIM was published by University Paris-Saclay,Radboud University Medical Center, based in France, categorised as academia,Academia.

02

When was DDIM released?

DDIM was published in April 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 DDIM used for?

DDIM works in Biology, and is recorded as handling gene expression profile generation. These are the areas it was designed around; they describe intent rather than a hard boundary.

04

How much compute was used to train DDIM?

Around 9 × 10¹⁷ 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.

05

What GPU do I need to run DDIM?

None. DDIM 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.

06

Is DDIM open source?

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

07

How many parameters does DDIM have?

No parameter count has been published for DDIM, which is why no memory or speed figure appears on this page.

Source

Original publication

Record last updated 28 November 2025

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.