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Open-weight model · Audio classification

wav2vec2-large-robust-24-ft-age-gender

by audEERING GmbH audeering/wav2vec2-large-robust-24-ft-age-gender

The model expects a raw audio signal as input and outputs predictions for age in a range of approximately 0...1 (0...100 years) and gender expressing the probababilty for being child, female, or male.

Parameters318M
Context
Weights2.5 GB
Licensecc-by-nc-sa-4.0
AccessOpen weights
Monthly Downloads2.5M

Runs On

What it takes to serve wav2vec2-large-robust-24-ft-age-gender (318M parameters): the memory its weights need at each precision, and the cheapest way to rent enough data-center GPUs to hold them.

PrecisionWeightsMemory neededCheapest setupPer hourAlso fits
16-bit 0.6 GB 0.8 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00
8-bit 0.3 GB 0.4 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00
4-bit 0.2 GB 0.2 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00

Memory is the weights at that precision plus 20% for the runtime and a short context; a long context needs more. Prices are the lowest on-demand hourly rates in the SAVRN Index, read Sep 18, 2026.

Model Card

The model expects a raw audio signal as input and outputs predictions for age in a range of approximately 0...1 (0...100 years) and gender expressing the probababilty for being child, female, or male. In addition, it also provides the pooled states of the last transformer layer. The model was created by fine-tuning Wav2Vec2-Large-Robust Timit and For this version of the model we trained all 24 transformer layers. An ONNX export of the model is available from Further details are given in the associated paper and tutorial.

Excerpt from the card by audEERING GmbH, licensed cc-by-nc-sa-4.0.

Configuration

Architecture
Model
Layers
24
Hidden size
1,024
Feed-forward size
4,096
Attention heads
16
Vocabulary size
32
Stored precision
float32
Model type
wav2vec2

Identity and Version

Repository
audeering/wav2vec2-large-robust-24-ft-age-gender
Publisher
audEERING GmbH
Task
Audio classification
Modality
Audio
Library
transformers
Parameters
318M parameters
Languages
Not stated by the source
Revision
bad2737f529168bc3d3fcd97edfaba9583c7d36d
First published
2023-09-04
Last updated
2025-03-24

Files and Weights

8 files, 2.5 GB in total. The weights are 2 files totalling 2.5 GB in bin, safetensors.

Weights2 files · 2.5 GB
Configuration2 files · 2.6 KB
Tokenizer1 file · 3 B
Documentation2 files · 25.0 KB
Repository1 file · 1.5 KB
Every file
FileTypeSizeSHA-256
model.safetensorsWeights1.3 GB 5868cc9548a1
pytorch_model.binWeights1.3 GB 5c630cf42d0c
config.jsonConfiguration2.4 KB
preprocessor_config.jsonConfiguration214 B
LICENSEDocumentation20.9 KB
README.mdDocumentation4.2 KB
.gitattributesRepository1.5 KB
vocab.jsonTokenizer3 B

License and Download

License
cc-by-nc-sa-4.0
Access
Open weights, no gate
Download size
2.5 GB
Download from audEERING GmbH

Released by audEERING GmbH through its official repository on Hugging Face.

Built From

  • Derived from facebook/wav2vec2-large-robust
  • Described by arXiv:2306.16962
  • Trained on (disclosed) agender
  • Trained on (disclosed) mozillacommonvoice
  • Trained on (disclosed) timit
  • Trained on (disclosed) voxceleb2

Memory Requirements

PrecisionWeights in memory
As published2.5 GB
16-bit0.6 GB
8-bit0.3 GB
4-bit0.2 GB

Weights only, from the published parameter count; the key-value cache and runtime add to this.

Compare wav2vec2-large-robust-24-ft-age-gender

Questions About wav2vec2-large-robust-24-ft-age-gender

How much GPU memory does wav2vec2-large-robust-24-ft-age-gender need?

About 0.8 GB at 16-bit and 0.2 GB at 4-bit: the weights (318M parameters) plus a working margin. A long context needs more.

What is the cheapest GPU to run wav2vec2-large-robust-24-ft-age-gender on?

At 16-bit, 1x MI300X from $1.85 an hour; at 4-bit, 1x MI300X from $1.85 an hour, at the lowest on-demand prices the SAVRN Index lists.

Can I use wav2vec2-large-robust-24-ft-age-gender commercially?

Not without separate permission. wav2vec2-large-robust-24-ft-age-gender is released under Creative Commons Attribution-NonCommercial-ShareAlike 4.0. CC BY-NC-SA 4.0 permits non-commercial sharing and adapting with credit, and requires adaptations to use the same license. Commercial use needs separate permission.

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