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Open-weight model · Audio classification

clap-htsat-fused

by LAION eV laion/clap-htsat-fused

LAION-CLAP was trained on LAION-audio-630k The abstract of the paper states that: You can use this model for zero shot audio classification or extracting audio and/or textual features.

Parameters154M
Context514
Weights1.2 GB
Licenseapache-2.0
AccessOpen weights
Monthly Downloads8.2M

Runs On

What it takes to serve clap-htsat-fused (154M 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 0.3 GB 0.4 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00
8-bit 0.2 GB 0.2 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00
4-bit 0.1 GB 0.1 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.

SAVRN's Notes on clap-htsat-fused

Pairing sound with text is the job here: LAION eV's clap-htsat-fused puts audio and text embeddings in one space, so it can classify audio zero-shot against labels you write or produce features for search. Training data was LAION-audio-630k; size is 154M parameters. At 16-bit the weights are 0.3 GB and the run needs 0.4 GB; the cheapest listed option is one 192 GB MI300X at $1.85 an hour on-demand. Treat it as a sidecar on a card that is already serving something larger.

Apache 2.0 covers commercial deployment, modification and redistribution if the notices and any NOTICE file stay attached and significant changes are stated. Two checks before committing. The text side stops at 514 tokens, fine for labels and captions, not for long documents. And the repository is 1.23 GB in 11 files at float32 against 0.3 GB of 16-bit weights, so budget for storage and conversion.

Model Card

By LAION eV, published under apache-2.0, revision 365dea6ef167.

Model card for CLAP

Model card for CLAP: Contrastive Language-Audio Pretraining

Dataset

LAION-CLAP was trained on LAION-audio-630k

Table of Contents

  1. TL;DR
  2. Model Details
  3. Usage
  4. Uses
  5. Citation

TL;DR

The abstract of the paper states that:

Read the full model card (464 words)

Configuration

Architecture
ClapModel
Context length (tokens)
514
Layers
16
Hidden size
768
Feed-forward size
3,072
Attention heads
12
Vocabulary size
50,265
Stored precision
float32
Model type
clap

Identity and Version

Repository
laion/clap-htsat-fused
Publisher
LAION eV
Task
Audio classification
Modality
Audio
Library
transformers
Parameters
154M parameters
Languages
en
Revision
365dea6ef167def6676140ed93bbc43f84dabb28
First published
2023-02-16
Last updated
2026-01-12

Files and Weights

11 files, 1.2 GB in total. The weights are 2 files totalling 1.2 GB in bin, safetensors.

Weights2 files · 1.2 GB
Configuration3 files · 6.2 KB
Tokenizer4 files · 3.4 MB
Documentation1 file · 4.6 KB
Repository1 file · 1.5 KB
Every file
FileTypeSizeSHA-256
model.safetensorsWeights614.5 MB 3f648de6d030
pytorch_model.binWeights614.6 MB 1ed5d0215d88
config.jsonConfiguration5.4 KB
preprocessor_config.jsonConfiguration537 B
special_tokens_map.jsonConfiguration280 B
README.mdDocumentation4.6 KB
.gitattributesRepository1.5 KB
merges.txtTokenizer456.4 KB
tokenizer.jsonTokenizer2.1 MB
tokenizer_config.jsonTokenizer384 B
vocab.jsonTokenizer798.3 KB

License and Download

License
apache-2.0
Access
Open weights, no gate
Download size
1.2 GB
Download from LAION eV

Released by LAION eV through its official repository on Hugging Face. Read the license.

Built From

Memory Requirements

PrecisionWeights in memory
As published1.2 GB
16-bit0.3 GB
8-bit0.2 GB
4-bit0.1 GB

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

Compare clap-htsat-fused

Questions About clap-htsat-fused

How much GPU memory does clap-htsat-fused need?

About 0.4 GB at 16-bit and 0.1 GB at 4-bit: the weights (154M parameters) plus a working margin. A long context needs more.

What is the cheapest GPU to run clap-htsat-fused 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 clap-htsat-fused commercially?

Yes. clap-htsat-fused is released under Apache License 2.0. The Apache License 2.0 is a permissive open-source license. It permits commercial use, modification and redistribution. It requires keeping the license and copyright notices and any NOTICE file, stating significant changes, and it includes an express patent grant from contributors.

What is clap-htsat-fused's context length?

514 tokens, from the maximum position embeddings in its published configuration.

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