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Open-weight model · Speech recognition

whisper-tiny

by OpenAI openai/whisper-tiny

Whisper is a pre-trained model for automatic speech recognition (ASR) and speech translation. Trained on 680k hours of labelled data, Whisper models demonstrate a strong ability to generalise to many datasets and domains without the need for fine-tuning.

Parameters38M
Context
Weights604.5 MB
Licenseapache-2.0
AccessOpen weights
Monthly Downloads1.7M

Runs On

What it takes to serve whisper-tiny (38M 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 0.1 GB 0.1 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00
8-bit 0.0 GB 0.0 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00
4-bit 0.0 GB 0.0 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 whisper-tiny

At 16-bit the weights round to 0.1 GB and so does the memory needed, and the cheapest setup our Index lists is one MI300X with 192 GB at $1.85 an hour on-demand. Nobody buys a card for this; it rides on whatever accelerator is already running. OpenAI built it for automatic speech recognition and speech translation, trained on 680k hours of labeled data, with 38M parameters and 4 layers, and the files ship in safetensors, pytorch, jax and tf.

Apache 2.0 allows commercial use with notices kept and changes stated, so it can go straight into a product. What to check is the publisher's reported evaluations: 7.54% test WER on LibriSpeech clean, 17.15% on LibriSpeech other, and 141.0% on Common Voice 11.0 Hindi. The Hindi figure sits far above the English ones, so test your own audio before committing. The paper is arXiv:2212.04356; last updated February 29, 2024.

Model Card

By OpenAI, published under apache-2.0, revision 169d4a4341b3.

Whisper

Whisper is a pre-trained model for automatic speech recognition (ASR) and speech translation. Trained on 680k hours of labelled data, Whisper models demonstrate a strong ability to generalise to many datasets and domains without the need for fine-tuning.

Whisper was proposed in the paper Robust Speech Recognition via Large-Scale Weak Supervision by Alec Radford et al from OpenAI. The original code repository can be found here.

Disclaimer: Content for this model card has partly been written by the Hugging Face team, and parts of it were copied and pasted from the original model card.

Model details

Whisper is a Transformer based encoder-decoder model, also referred to as a sequence-to-sequence model. It was trained on 680k hours of labelled speech data annotated using large-scale weak supervision.

Read the full model card (2,083 words)

Configuration

Architecture
WhisperForConditionalGeneration
Layers
4
Vocabulary size
51,865
Stored precision
float32
Model type
whisper

Identity and Version

Repository
openai/whisper-tiny
Publisher
OpenAI
Task
Speech recognition
Modality
Audio
Library
transformers
Parameters
38M parameters
Languages
en, zh, de, es, ru, ko, fr, ja
Revision
169d4a4341b33bc18d8881c4b69c2e104e1cc0af
First published
2022-09-26
Last updated
2024-02-29

Files and Weights

16 files, 608.9 MB in total. The weights are 4 files totalling 604.5 MB in bin, h5, msgpack, safetensors.

Weights4 files · 604.5 MB
Configuration6 files · 280.2 KB
Tokenizer4 files · 4.1 MB
Documentation1 file · 19.8 KB
Repository1 file · 1.4 KB
Every file
FileTypeSizeSHA-256
flax_model.msgpackWeights151.0 MB a695f537d9f0
model.safetensorsWeights151.1 MB 7ebd0e69e781
pytorch_model.binWeights151.1 MB 9607f98a2b22
tf_model.h5Weights151.3 MB 4144af98f9f3
added_tokens.jsonConfiguration34.6 KB
config.jsonConfiguration2.0 KB
generation_config.jsonConfiguration3.7 KB
normalizer.jsonConfiguration52.7 KB
preprocessor_config.jsonConfiguration185.0 KB
special_tokens_map.jsonConfiguration2.2 KB
README.mdDocumentation19.8 KB
.gitattributesRepository1.4 KB
merges.txtTokenizer493.9 KB
tokenizer.jsonTokenizer2.5 MB
tokenizer_config.jsonTokenizer282.7 KB
vocab.jsonTokenizer835.5 KB

License and Download

License
apache-2.0
Access
Open weights, no gate
Download size
604.5 MB
Download from OpenAI

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

Built From

Evaluations

Each result is shown as reported, with the conditions its reporter stated. None is a SAVRN measurement. A comparison lines two results up only when their configuration, unit and setup are all stated and identical.

BenchmarkConditionsResultReported byRevisionDate
Common Voice 11.0 Configuration hiTask Automatic Speech RecognitionMetric Test WERComparison conditions not established 141 openai
Publisher reported
Evaluated revision not stated
LibriSpeech (clean) Configuration cleanTask Automatic Speech RecognitionMetric Test WERComparison conditions not established 7.54 openai
Publisher reported
Evaluated revision not stated
LibriSpeech (other) Configuration otherTask Automatic Speech RecognitionMetric Test WERComparison conditions not established 17.15 openai
Publisher reported
Evaluated revision not stated

Memory Requirements

PrecisionWeights in memory
As published604.5 MB
16-bit0.1 GB
8-bit0.0 GB
4-bit0.0 GB

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

Built on This Model

Questions About whisper-tiny

How much GPU memory does whisper-tiny need?

About 0.1 GB at 16-bit and 0 GB at 4-bit: the weights (38M parameters) plus a working margin. A long context needs more.

What is the cheapest GPU to run whisper-tiny 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 whisper-tiny commercially?

Yes. whisper-tiny 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.

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