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Open-weight model · Speech recognition

wav2vec2-large-xls-r-300m-Urdu

by Abid Ali Awan kingabzpro/wav2vec2-large-xls-r-300m-Urdu

A fine-tuned XLS-R 300M CTC model for Urdu automatic speech recognition. It transcribes 16 kHz mono audio and includes an optional 5-gram KenLM decoder. Best reported result: 39.89% WER / 16.70% CER with KenLM decoding on the Urdu Common Voice 8.0 test set.

Parameters315M
Context
Weights1.3 GB
Licenseapache-2.0
AccessOpen weights
Monthly Downloads1.7M

Runs On

What it takes to serve wav2vec2-large-xls-r-300m-Urdu (315M 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.

SAVRN's Notes on wav2vec2-large-xls-r-300m-Urdu

Urdu transcription of 16 kHz mono audio is the whole job here. The model carries 315M parameters, and at 16-bit the weights are 0.6 GB with 0.8 GB needed to run. The cheapest setup the SAVRN Index prices is one MI300X with 192 GB at $1.85 an hour on-demand, so this uses well under one percent of the card. We would place it beside other work on shared hardware, never on a box of its own.

Apache 2.0 permits commercial use, modification and redistribution provided the license and copyright notices travel with the files and significant changes are stated. Check the lineage before committing: it was derived from facebook/wav2vec2-xls-r-300m and trained on mozilla-foundation/common_voice_8_0, so the publisher's reported 39.89% WER and 16.70% CER with the included 5-gram KenLM decoder describe that dataset's test split, not your recordings. Access is open and the last update was June 24, 2026.

Model Card

By Abid Ali Awan, published under apache-2.0, revision 18a6595fc0cc.

Urdu ASR XLS-R 300M

A fine-tuned XLS-R 300M CTC model for Urdu automatic speech recognition. It transcribes 16 kHz mono audio and includes an optional 5-gram KenLM decoder.

Best reported result: 39.89% WER / 16.70% CER with KenLM decoding on the Urdu Common Voice 8.0 test set. See the Kaggle evaluation notebook for a reproducible example.

Quick start

Install the required packages:

pip install -U torch torchaudio transformers pyctcdecode kenlm huggingface_hub

Note: After installing the packages in a notebook environment, restart the kernel before running the inference code.

Transcribe a local audio file:

Read the full model card (847 words)

Configuration

Architecture
Wav2Vec2ForCTC
Layers
24
Hidden size
1,024
Feed-forward size
4,096
Attention heads
16
Vocabulary size
57
Stored precision
float32
Model type
wav2vec2

Identity and Version

Repository
kingabzpro/wav2vec2-large-xls-r-300m-Urdu
Publisher
Abid Ali Awan
Task
Speech recognition
Modality
Audio
Library
transformers
Parameters
315M parameters
Languages
ur
Revision
18a6595fc0cc4d9c63fc8d0407b5596f09c49edb
First published
2022-03-02
Last updated
2026-06-24

Files and Weights

24 files, 1.4 GB in total. The weights are 3 files totalling 1.3 GB in bin, safetensors.

Weights3 files · 1.3 GB
Configuration10 files · 14.6 KB
Tokenizer2 files · 890 B
Documentation1 file · 9.0 KB
Other6 files · 77.1 MB
Repository2 files · 1.4 KB
Every file
FileTypeSizeSHA-256
language_model/5gram.binWeights73.6 MB 4f6488c3dec0
model.safetensorsWeights1.3 GB 9281f8afcaaf
training_args.binWeights3.1 KB 8f3fdb9fc7e9
.claude/settings.local.jsonConfiguration161 B
.ipynb_checkpoints/eval-checkpoint.pyConfiguration5.4 KB
added_tokens.jsonConfiguration23 B
alphabet.jsonConfiguration583 B
attrs.jsonConfiguration78 B
config.jsonConfiguration2.1 KB
eval.pyConfiguration5.4 KB
language_model/attrs.jsonConfiguration78 B
preprocessor_config.jsonConfiguration262 B
special_tokens_map.jsonConfiguration502 B
README.mdDocumentation9.0 KB
5gram.arpaOther76.5 MB e43e9614c504
language_model/unigrams.txtOther215.9 KB
log_mozilla-foundation_common_voice_8_0_ur_test_predictions.txtOther22.3 KB
log_mozilla-foundation_common_voice_8_0_ur_test_targets.txtOther23.1 KB
mozilla-foundation_common_voice_8_0_ur_test_eval_results.txtOther49 B
unigrams.txtOther274.1 KB
.gitattributesRepository1.4 KB
.gitignoreRepository13 B
tokenizer_config.jsonTokenizer345 B
vocab.jsonTokenizer545 B

License and Download

License
apache-2.0
Access
Open weights, no gate
Download size
1.3 GB
Download from Abid Ali Awan

Released by Abid Ali Awan through its official repository on Hugging Face. Read the license.

Built From

  • Derived from facebook/wav2vec2-xls-r-300m
  • Trained on (disclosed) mozilla-foundation/common_voice_8_0

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 8 Task Speech RecognitionMetric Test CERComparison conditions not established 16.7 kingabzpro
Publisher reported
Evaluated revision not stated
Common Voice 8 Task Speech RecognitionMetric Test WERComparison conditions not established 39.89 kingabzpro
Publisher reported
Evaluated revision not stated

Memory Requirements

PrecisionWeights in memory
As published1.3 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.

Questions About wav2vec2-large-xls-r-300m-Urdu

How much GPU memory does wav2vec2-large-xls-r-300m-Urdu need?

About 0.8 GB at 16-bit and 0.2 GB at 4-bit: the weights (315M parameters) plus a working margin. A long context needs more.

What is the cheapest GPU to run wav2vec2-large-xls-r-300m-Urdu 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-xls-r-300m-Urdu commercially?

Yes. wav2vec2-large-xls-r-300m-Urdu 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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