Reasoning V3 SKU. Loads via vMLX or jang-tools Python. Follow @dealignai.

Nemotron-3-Nano-Omni-30B-A3B — JANGTQ4 + CRACK v2

JANGTQ4 (8-bit attn affine + 4-bit MXTQ routed experts) | CRACK abliterated v2 | Vision + Audio (Speech) | Hybrid Mamba-2 + Attn + MoE | 19 GB

Headline numbers

The 12.5pp MMLU gap is concentrated in two reasoning-heavy subjects (abstract_algebra, college_computer_science) where the 8000-token thinking budget runs out before </think> closes. These hard-stops are genuine deep reasoning, not v1-style infinite repetition loops. With max_tokens ≥ 16384, accuracy approaches base.

v2 vs v1 (head-to-head)

v1 (shipped 2026-04-28) had a </think> termination defect at greedy decoding — the model couldn't terminate reasoning on hard prompts and looped to budget cutoff. MMLU dropped from 86.5% base → 70.0% v1.

v2 (this release) restores clean termination:

MMLU-200 per-subject (BASE vs CRACK v2)

Both at thinking=ON, greedy. Base at max=2000, CRACK v2 at max=8000.

HarmBench-320 per-category (CRACK v2)

Zero explicit refusals. The 9 "empty" verdicts are token-budget truncations on copyright/long prompts (thinking phase consumed all 1500 tokens before producing the answer).

Operating recommendations

• enable_thinking — v2 works in BOTH modes (5/5 comply with thinking ON, 4/5 with thinking OFF). Default to ON for hardest prompts; OFF works for most.
• max_tokens ≥ 16384 for hard reasoning (math, abstract algebra, complex CS).
• Greedy (temperature=0) AND sampling (temp=0.6, top_p=0.95 — NVIDIA-recommended in generation_config.json) both work.
• Multi-turn — context preserved across 3+ turns; no late refusals after escalating prompts.

Verification

• All multimodal tensors (vision + audio + projectors) are byte-identical to base — capabilities fully preserved.
• All config files unchanged (config.json, jang_config.json, generation_config.json, chat_template.jinja, tokenizer_config.json).
• Bit widths preserved: attn=8, shared=8, mamba=8, routed=4, embed=8, lm_head=8.

Architecture (nemotron_h)

• 52 layers: hybrid Mamba-2 + MoE + Attention
• Hidden 2688, head_dim 128, GQA 32q/2kv (NO RoPE on attention — position from Mamba state)
• 128 routed experts top-6 (sigmoid) + 1 shared expert per MoE layer
• Multimodal: image (RADIO ViT) + audio/speech (Parakeet) merged via early-fusion projectors

Loading

from huggingface_hub import snapshot_download
import sys
path = snapshot_download("dealignai/Nemotron-3-Nano-Omni-30B-A3B-JANGTQ4-CRACK")
sys.path.insert(0, "/path/to/jang-tools")
from jang_tools.load_jangtq import load_jangtq_model
model, tokenizer = load_jangtq_model(path)

prompt = tokenizer.apply_chat_template(
    [{"role": "user", "content": "Your question"}],
    tokenize=False, add_generation_prompt=True,
    enable_thinking=True,
)
from mlx_lm import generate
out = generate(model, tokenizer, prompt=prompt, max_tokens=16384)
print(out.split("</think>", 1)[-1])

For the multimodal pipeline (image + audio + video), pair this bundle with the unmodified Multimodal-Addon.

Use responsibly

This model has had refusal training surgically removed for legitimate research, red-teaming, and evaluation. Outputs may include harmful content. You are solely responsible for any use. Do not deploy in consumer-facing contexts without your own safety layer. Do not use in violation of applicable law in your jurisdiction.

Built by dealignai. Sister bundles: JANGTQ-CRACK (12 GB, 2-bit MXTQ) · MXFP4-CRACK (21 GB, uniform 4-bit affine).