High accuracy and optimized performance for transcription in 25 languages
NVIDIA Parakeet‑RNNT‑1.1B is a multilingual ASR model with 1.1B parameters, trained on more than 90K hours of speech for high‑quality transcription across global use cases. It uses a universal tokenizer built by first training language‑specific tokenizers and then merging them into a single shared vocabulary, enabling efficient cross‑lingual learning and deployment.
The model supports transcription in 25 languages and variants—including English (en‑US, en‑GB), Spanish (es‑US, es‑ES), German (de‑DE), French (fr‑FR, fr‑CA), Italian (it‑IT), Arabic (ar‑AR), Japanese (ja‑JP), Korean (ko‑KR), Portuguese (pt‑BR, pt‑PT), Russian (ru‑RU), Hindi (hi‑IN), Dutch (nl‑NL), Danish (da‑DK), Norwegian Nynorsk (nn‑NO), Norwegian Bokmål (nb‑NO), Czech (cs‑CZ), Polish (pl‑PL), Swedish (sv‑SE), Thai (th‑TH), Turkish (tr‑TR), and Hebrew (he‑IL).
This model produces case‑sensitive transcripts (upper and lower case) with punctuation, spaces, and apostrophes, making it suitable for production‑grade voice applications and downstream language understanding.
This model is ready for commercial use.
GOVERNING TERMS: The use of this model is governed by the NVIDIA Community Model License (found at https://www.nvidia.com/en-us/agreements/enterprise-software/nvidia-community-models-license/).
[1] Fast Conformer with Linearly Scalable Attention for Efficient Speech Recognition
[2] Fast-Conformer-RNNT Model
[3] Conformer: Convolution-augmented Transformer for Speech Recognition
Architecture Type: Parakeet-RNNT (also known as FastConformer-RNNT) [1], [2] which is an optimized version of Conformer model [3] with 8x depthwise-separable convolutional downsampling with Hybrid loss
Network Architecture: Parakeet-RNNT-XXL-1.1B
Input Type(s): Audio
Input Format(s): wav
Input Parameters: 1-Dimension
Other Properties Related to Input: Maximum Length in seconds specific to GPU Memory, No Pre-Processing Needed, Mono channel is required
Output Type(s): Text
Output Format: String
Output Parameters: 1-Dimension
Other Properties Related to Output: No Maximum Character Length, Does not handle special characters
Supported Hardware Microarchitecture Compatibility:
[Preferred/Supported] Operating System(s):
Parakeet-RNNT-XXL-1.1b_universal_spe8.5k_1.0
Engine: Triton
Test Hardware:
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