Huihui-Qwen3.6-35B-A3B-Claude-4.6-Opus-abliterated-NVFP4

NVFP4 quantized version of huihui-ai/Huihui-Qwen3.6-35B-A3B-Claude-4.6-Opus-abliterated — Claude 4.6 Opus distilled, abliterated (uncensored) Qwen 3.6 MoE with 256 experts and 3B active parameters.

67 GB → 21.9 GB. Single NVIDIA Blackwell GPU. 175 tok/s. 256K context. VLM. Uncensored.

Why This Model

Claude 4.6 Opus intelligence distilled into a locally runnable MoE, with abliteration for unrestricted research use:

• 256 experts, 3B active — extreme sparsity = extreme speed
• Claude 4.6 Opus distillation — Opus-quality reasoning at local speed
• 262K native context — fits on single 96 GB GPU with FP8 KV
• VLM — vision fully functional (BF16 precision)
• Abliterated — no refusals, full capability for research and local deployment

Key Specs

Quickstart

vLLM

vllm serve sakamakismile/Huihui-Qwen3.6-35B-A3B-Claude-4.6-Opus-abliterated-NVFP4 \
    --max-model-len 32768 \
    --reasoning-parser qwen3 \
    --kv-cache-dtype fp8

With tool calling (agentic)

vllm serve sakamakismile/Huihui-Qwen3.6-35B-A3B-Claude-4.6-Opus-abliterated-NVFP4 \
    --max-model-len 32768 \
    --reasoning-parser qwen3 \
    --enable-auto-tool-choice \
    --tool-call-parser qwen3_coder \
    --kv-cache-dtype fp8

Docker

docker run --gpus '"device=0"' -p 8090:8090 \
    -v /path/to/model:/models/current:ro \
    --shm-size 16gb \
    vllm/vllm-openai:cu130-nightly \
    vllm serve /models/current --port 8090 --max-model-len 32768 \
    --reasoning-parser qwen3 --kv-cache-dtype fp8

Benchmark

Single NVIDIA RTX PRO 6000 Blackwell (96 GB VRAM), 256K context, FP8 KV cache.

Sustained: ~175 tok/s (single GPU, 256K context).

VRAM Usage

256K context fits on a single 96 GB Blackwell GPU with FP8 KV cache.

Also Available

Quantization Details

Recipe

recipe = QuantizationModifier(
    targets="Linear",
    scheme="NVFP4",
    ignore=["lm_head", "re:.*visual.*", "re:.*mlp.gate$", "re:.*mlp.shared_expert_gate$"],
)

Calibration

• Dataset: HuggingFaceH4/ultrachat_200k (train_sft split)
• Samples: 512
• Max sequence length: 2048
• moe_calibrate_all_experts=True — ensures all 256 experts receive calibration data

Reproduction

from transformers import Qwen3_5MoeForConditionalGeneration, AutoProcessor, AutoTokenizer
from datasets import load_dataset
from llmcompressor import oneshot
from llmcompressor.modifiers.quantization import QuantizationModifier

MODEL_ID = "huihui-ai/Huihui-Qwen3.6-35B-A3B-Claude-4.6-Opus-abliterated"

model = Qwen3_5MoeForConditionalGeneration.from_pretrained(MODEL_ID, dtype="auto", trust_remote_code=True)
processor = AutoProcessor.from_pretrained(MODEL_ID, trust_remote_code=True)
tokenizer = AutoTokenizer.from_pretrained(MODEL_ID, trust_remote_code=True)

recipe = QuantizationModifier(
    targets="Linear", scheme="NVFP4",
    ignore=["lm_head", "re:.*visual.*", "re:.*mlp.gate$", "re:.*mlp.shared_expert_gate$"],
)

ds = load_dataset("HuggingFaceH4/ultrachat_200k", split="train_sft[:512]")
ds = ds.shuffle(seed=42)

def preprocess(example):
    return {"text": tokenizer.apply_chat_template(example["messages"], tokenize=False)}
ds = ds.map(preprocess)

def tokenize(sample):
    return tokenizer(sample["text"], padding=False, max_length=2048,
                     truncation=True, add_special_tokens=False)
ds = ds.map(tokenize, remove_columns=ds.column_names)

oneshot(model=model, dataset=ds, recipe=recipe,
        max_seq_length=2048, num_calibration_samples=512,
        moe_calibrate_all_experts=True)

model.save_pretrained("output", save_compressed=True)
processor.save_pretrained("output")
tokenizer.save_pretrained("output")

Environment

Requirements

• GPU: NVIDIA Blackwell (SM 120) — RTX 5090, 5080, 5070 Ti, RTX PRO 6000
• VRAM: ~22 GB minimum (text only), 96 GB for 256K context
• Software: vLLM nightly (cu130)

Notes

• Abliterated (uncensored). Use responsibly.
• Multimodal (vision) fully functional at BF16 precision.
• Gated DeltaNet + Attention hybrid architecture.
• NVFP4 is Blackwell-specific. Will not work on Ampere/Hopper.
• Use --kv-cache-dtype fp8 for 2x KV capacity at no quality cost.

Credits

• Abliteration + Claude distillation: huihui-ai
• Original model: Qwen
• Quantization tool: llm-compressor
• SM120 NVFP4 kernels: blackwell-geforce-nvfp4-gemm
• Quantized by: Lna-Lab

Support the Base Model Author

• Ko-fi: https://ko-fi.com/huihuiai
• Bitcoin: bc1qqnkhuchxw0zqjh2ku3lu4hq45hc6gy84uk70ge