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vibe-app/diar-streaming-sortformer-4spk-v2-gguf overview

Streaming Sortformer 4 speaker v2 — GGUF A GGUF build of nvidia/diar streaming sortformer 4spk v2 https://huggingface.co/nvidia/diar streaming sortformer 4spk …

ggufspeaker-diarizationsortformervibebase_model:nvidia/diar_streaming_sortformer_4spk-v2base_model:quantized:nvidia/diar_streaming_sortformer_4spk-v2license:cc-by-4.0region:us

Runs locally from ~140.3 MB disk (4 GB VRAM class GPUs with llama.cpp / guIDE).

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Repository Files & Downloads

1 GGUF files detected
Direct downloads for local inference
FileTypeQuantizationSizeLink
diar_streaming_sortformer_4spk-v2.q8_0.ggufGGUFGGUF140.3 MBDownload

Model Details

Model IDvibe-app/diar-streaming-sortformer-4spk-v2-gguf
Authorvibe-app
Pipeline
Licensecc-by-4.0
Base modelnvidia/diar_streaming_sortformer_4spk-v2
Last modified2026-08-24T08:50:53.000Z

Model README

---

license: cc-by-4.0

base_model: nvidia/diar_streaming_sortformer_4spk-v2

tags:

- speaker-diarization

- sortformer

- gguf

- vibe

---

Streaming Sortformer 4-speaker v2 — GGUF

A GGUF build of nvidia/diar_streaming_sortformer_4spk-v2,

mirrored here so Vibe has a download source it controls.

Converted from the original .nemo checkpoint with NVIDIA's own converter

(NeMo-Speech.cpp, Apache-2.0), not from an ONNX export.

The result matches NVIDIA's published GGUF tensor-for-tensor: 971 tensors, same names, same shapes.

Files

| file | size | notes |

|---|---|---|

| diar_streaming_sortformer_4spk-v2.q8_0.gguf | 147 MB | Q8_0. What Vibe downloads. |

Only F32/F16/Q8_0 are safe for this model. The k-quant tiers are not: the speaker-cache

compression makes discrete near-tie decisions, and k-quant weight error can flip one and

permute speaker labels mid-stream.

Validation

Checked against the ONNX Runtime output it replaces, on two clips (12 s / 41 s):

identical speaker labels once binarised at 0.5, and every segment boundary identical

to the millisecond. Max absolute probability difference 0.018.

Caps at 4 speakers. 80 ms frames, 16 kHz mono input.

License

cc-by-4.0, inherited from the base model. Credit NVIDIA.

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