Project AURIONAI Use-Cases Research & Innovation
NVIDIA
speech synthesis

Magpie TTS Multilingual 357M

Multilingual text-to-speech model with five English speaker voices, also offered in Riva.

NVIDIANVIDIAUSA
Diagram of the Magpie TTS architecture with text encoder and autoregressive decoder.
Levelmodel
Classspeech synthesis
Parameters364M
Contextnot in the notes
Released11 Dec 2025
Opennessopen weights permissive
Runs onnot in the notes
Statusactive

R&D Topics

Text-to-speech for low-resource languagesproduced by

Identity

Developer
NVIDIA
Family
not in the notes
Released
11 Dec 2025 sourcesregistry date
Weights published
–
Record checked
12 Oct 2026
Where this comes from
Developer and dates from the research notes. Release date is the vendor's public announcement; weights date is when open weights were published.

Architecture and Size

Architecture
dense transformer encoder-decoder transformer
Total parameters
364M sources
Active parameters
–
Checkpoint parameters
–
Context length
not in the notes
Input
text
Output
audio
Where this comes from
Parameter counts as the developer states them. Where the checkpoint holds a different total, both are shown (register A16).

Openness and Access

Openness
open weights permissive
Licence
NVIDIA Open Model License sources
Access routes
open weights download
Where this comes from
The licence file governs over registry tags and aggregator labels.

Deployment

Runs on
not in the notes
Footprint
not in the notes
Runtimes
not in the notes
Where this comes from
Deployment tiers and runtimes as named in the notes. Footprint is the notes' figure, not a measurement by AURION.

Indonesia

Indonesian support
not stated
Regional languages
not in the notes
Jakarta hosting
unknown
Languages
ar, de, en, es, fr, hi, it, ja, ko, pt, vi, zh
Where this comes from
Indonesia fields are carried on every model; unknown is an allowed value.

Benchmark Results

The notes record no benchmark result for this model.

Lineage

The notes record no lineage for this model.

Industry Use Cases

No industry use case links this model.

Sources

  1. huggingface.co/nvidia/magpie_tts_multilingual_357m https://huggingface.co/nvidia/magpie_tts_multilingual_357m

To cite this page: Project AURION, AI Use-Cases Research & Innovation, "Magpie TTS Multilingual 357M", https://aurion.semai.id/models/nvidia-magpie-tts-multilingual-357m/, records of October 2026.