AEmotionStudio/underdog-bark-models

Underdog Bark 3.0 — MAESTRO mirror

Mirror of the three Underdog Bark 3.0 English speech-recognition checkpoints that MAESTRO ships, with the NVIDIA feature-extractor and tokenizer files they share, so the in-app downloader has one stable, self-contained, offline-capable source.

folder	source	what it is
plus/	ConwayResearch/Underdog-Bark-3.0-Plus	verbatim — every word as spoken, fillers kept
clean/	ConwayResearch/Underdog-Bark-3.0-Clean	fillers, false starts and repeats removed
pro/	ConwayResearch/Underdog-Bark-3.0-Pro	the larger-download verbatim checkpoint
processor/	nvidia/parakeet-tdt-0.6b-v3	feature extractor + tokenizer (shared)

Each variant folder is a standard ParakeetForTDT checkpoint (config.json, generation_config.json, model.safetensors). Exact source revisions and the sha256 of every file are in sha256.json.

Attribution (CC-BY-4.0)

Underdog Bark 3.0 is © Conway Research, CC BY 4.0. It derives from nvidia/parakeet-tdt-0.6b-v3 (© NVIDIA Corporation, CC BY 4.0) by way of moondream/parakeet-ultra (© Moondream, CC BY 4.0). License: https://creativecommons.org/licenses/by/4.0/ — full chain in NOTICE.

Changes in this mirror

• plus/ and clean/: Conway publishes these as an entropy-coded model.bark that needs the constriction ANS decoder and transformers ≥ 5.19 to load. They were decoded once with Conway's own decode routine and written as safetensors. The decode is exact and so is the storage: each tensor is fp16 where that is bit-identical to the decoded value (the level-coded encoder weights, 604M params) and fp32 otherwise (23M params). No values were changed.
• pro/ and processor/: byte-identical copies.

Use

MAESTRO loads these with a vendored Parakeet-TDT graph (AI › Transcribe › Underdog Bark). With transformers ≥ 5.19 the folders also load directly:

from transformers import AutoProcessor, ParakeetForTDT
model = ParakeetForTDT.from_pretrained("AEmotionStudio/underdog-bark-models", subfolder="plus")
processor = AutoProcessor.from_pretrained("AEmotionStudio/underdog-bark-models", subfolder="processor")

Prepend 0.25 s of silence for Plus and Pro (Conway's evaluated setting; Clean uses none). Prefer fp16 or fp32: in MAESTRO's parity runs bf16 changed the transcript on 3 of 10 clips for Pro.