This model is a finetuned version of facebook/wav2vec2-large-xlsr-53. There was an issue with vocab, seems like there are special characters included and they were not considered during training You could try
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Open-weight model · Speech recognition
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.
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.
| Precision | Weights | Memory needed | Cheapest setup | Per hour | Also 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.
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.
By Abid Ali Awan, published under apache-2.0, revision 18a6595fc0cc.
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.
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:
24 files, 1.4 GB in total. The weights are 3 files totalling 1.3 GB in bin, safetensors.
| File | Type | Size | SHA-256 |
|---|---|---|---|
| language_model/5gram.bin | Weights | 73.6 MB | 4f6488c3dec0 |
| model.safetensors | Weights | 1.3 GB | 9281f8afcaaf |
| training_args.bin | Weights | 3.1 KB | 8f3fdb9fc7e9 |
| .claude/settings.local.json | Configuration | 161 B | — |
| .ipynb_checkpoints/eval-checkpoint.py | Configuration | 5.4 KB | — |
| added_tokens.json | Configuration | 23 B | — |
| alphabet.json | Configuration | 583 B | — |
| attrs.json | Configuration | 78 B | — |
| config.json | Configuration | 2.1 KB | — |
| eval.py | Configuration | 5.4 KB | — |
| language_model/attrs.json | Configuration | 78 B | — |
| preprocessor_config.json | Configuration | 262 B | — |
| special_tokens_map.json | Configuration | 502 B | — |
| README.md | Documentation | 9.0 KB | — |
| 5gram.arpa | Other | 76.5 MB | e43e9614c504 |
| language_model/unigrams.txt | Other | 215.9 KB | — |
| log_mozilla-foundation_common_voice_8_0_ur_test_predictions.txt | Other | 22.3 KB | — |
| log_mozilla-foundation_common_voice_8_0_ur_test_targets.txt | Other | 23.1 KB | — |
| mozilla-foundation_common_voice_8_0_ur_test_eval_results.txt | Other | 49 B | — |
| unigrams.txt | Other | 274.1 KB | — |
| .gitattributes | Repository | 1.4 KB | — |
| .gitignore | Repository | 13 B | — |
| tokenizer_config.json | Tokenizer | 345 B | — |
| vocab.json | Tokenizer | 545 B | — |
Released by Abid Ali Awan through its official repository on Hugging Face. Read the license.
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.
| Benchmark | Conditions | Result | Reported by | Revision | Date |
|---|---|---|---|---|---|
| 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 | — |
| Precision | Weights in memory |
|---|---|
| As published | 1.3 GB |
| 16-bit | 0.6 GB |
| 8-bit | 0.3 GB |
| 4-bit | 0.2 GB |
Weights only, from the published parameter count; the key-value cache and runtime add to this.
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.
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.
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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