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Open-weight model · Voice activity detection

Nemotron-3-Diarization-CoreAI

by Sachin Desai smdesai/Nemotron-3-Diarization-CoreAI

Nemotron-3-Diarization-CoreAI is an open-weight model for voice activity detection from Sachin Desai, released under openmdw-1.1. Its published files total 401.0 MB.

Core AI (.aimodel) conversion of NVIDIA's streaming speaker-diarization model (up to eight speakers, 10 ms output frames) for iOS 27+ / macOS 27+.

Parameters—
Context—
Weights401.0 MB
Licenseopenmdw-1.1
AccessOpen weights
Monthly Downloads—

Model Card

Core AI (.aimodel) conversion of NVIDIA's streaming speaker-diarization model (up to eight speakers, 10 ms output frames) for iOS 27+ / macOS 27+. Converted from checkpoint revision (Nemotron-3-Diarization.nemo, SHA-256 867c53f552998f772e5b5e5c082962ae85ee7ca5669c2bc17d7f615133d4e96d) with coreai-torch 0.4.1 (standard graphs) and 0.4.2 (Neural Engine encoder), coreai-core 1.0.0b2. No weights were retrained, quantized or pruned. The model is split into two graphs that a host streaming loop calls once per encoder/head (packed speaker cache + FIFO + chunk embeddings → speaker probabilities). The Arrival-Order Speaker Cache, FIFO and chunking logic of Streaming Sortformer run on the host; see…

Excerpt from the card by Sachin Desai, licensed openmdw-1.1.

Identity and Version

Repository
smdesai/Nemotron-3-Diarization-CoreAI
Publisher
Sachin Desai
Task
Voice activity detection
Modality
Other
Library
Not stated by the source
Parameters
Not stated by the source
Languages
ios
Revision
e0cc0197c4531f912ec0319ac420be4bf1c634d9
First published
2026-09-23
Last updated
2026-09-24

Files and Weights

27 files, 401.0 MB in total.

Configuration8 files · 4.2 KB
Documentation3 files · 11.0 KB
Other15 files · 400.9 MB
Repository1 file · 2.5 KB
Every file
FileTypeSizeSHA-256
low-latency/frontend/frontend.jsonConfiguration878 B —
low-latency/models/encoder_head_fp16_ane.aimodel/metadata.jsonConfiguration105 B —
low-latency/models/preencoder_fp32.aimodel/metadata.jsonConfiguration105 B —
low-latency/pipeline.jsonConfiguration1.0 KB —
offline/frontend/frontend.jsonConfiguration878 B —
offline/models/encoder_head_fp16_ane.aimodel/metadata.jsonConfiguration105 B —
offline/models/preencoder_fp32.aimodel/metadata.jsonConfiguration105 B —
offline/pipeline.jsonConfiguration1.0 KB —
LICENSEDocumentation2.6 KB —
NOTICEDocumentation783 B —
README.mdDocumentation7.6 KB —
SHA256SUMSOther2.7 KB —
low-latency/frontend/hann_400.f32leOther1.6 KB —
low-latency/frontend/mel_128x257.f32leOther131.6 KB eb5cf9eb93b8
low-latency/learned_silence_embedding.f32leOther2.0 KB —
low-latency/models/encoder_head_fp16_ane.aimodel/main.hashOther32 B —
low-latency/models/encoder_head_fp16_ane.aimodel/main.mlirbOther198.2 MB 67c9b17873c0
low-latency/models/preencoder_fp32.aimodel/main.hashOther32 B —
low-latency/models/preencoder_fp32.aimodel/main.mlirbOther2.1 MB a1fb07aa0b17
offline/frontend/hann_400.f32leOther1.6 KB —
offline/frontend/mel_128x257.f32leOther131.6 KB eb5cf9eb93b8
offline/learned_silence_embedding.f32leOther2.0 KB —
offline/models/encoder_head_fp16_ane.aimodel/main.hashOther32 B —
offline/models/encoder_head_fp16_ane.aimodel/main.mlirbOther198.2 MB cb6db06525bf
offline/models/preencoder_fp32.aimodel/main.hashOther32 B —
offline/models/preencoder_fp32.aimodel/main.mlirbOther2.1 MB a8412ef1ef9d
.gitattributesRepository2.5 KB —

License and Download

License
openmdw-1.1
Access
Open weights, no gate
Download from Sachin Desai

Released by Sachin Desai through its official repository on Hugging Face.

Built From

  • Derived from nvidia/Nemotron-3-Diarization

Questions About Nemotron-3-Diarization-CoreAI

What license is Nemotron-3-Diarization-CoreAI released under?

openmdw-1.1, as its publisher declares it. Read the license text before commercial use.

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