Vishva007/Qwen3.5-9B-W4A16-AutoRound

This is a W4A16 (4-bit weight, 16-bit activation) quantized version of Qwen/Qwen3.5-9B, produced using AutoRound — Intel's sign gradient descent based quantization method designed for production-grade accuracy retention. MTP Enabled model quantization

Quantization Details

Key Notes

• High accuracy configuration — 1000 iterations with 512 calibration samples targets production-grade quality with minimal degradation from the base model.
• W4A16 — Weights are quantized to 4-bit integers; activations remain in FP16 for inference stability.
• ~50% memory reduction compared to the FP16 base model, enabling deployment on consumer and mid-range GPUs.
• MTP (Multi-Token Prediction) Enabled — Supports speculative decoding for faster inference.

MTP / Speculative Decoding

This model supports Multi-Token Prediction (MTP) for improved inference throughput using speculative decoding.

When serving with compatible backends (e.g., vLLM), enable MTP using:

--speculative_config '{"method":"mtp","num_speculative_tokens":3}'

Notes

• num_speculative_tokens=1 is a stable default for balancing speed and accuracy.
• You can experiment with higher values for better throughput, depending on your hardware and latency requirements.

Usage

This model is compatible with transformers and backends that support AutoRound GPTQ-format weights (e.g., vLLM, SGLang, AutoGPTQ). For full model details, architecture, and capabilities, refer to the base model page.

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PyTorch 2.15

PyTorch 2.14

PyTorch 2.13

PyTorch 2.12

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