Qwen3.8-27B - GGUF Quantized

This repository provides GGUF quantized versions for Qwen/Qwen3.8-27B, including the unquantized F16 baseline and the full standard K-quants series.

All models were converted and quantized directly via native llama.cpp without any dataset retraining, fine-tuning, or architectural modifications (no imatrix dependencies), ensuring maximum compatibility and weight purity.


Quantization Variants & VRAM Requirements

Filename Quant Level Rec. VRAM/RAM Description & Best Use Cases
Qwen3.8-27B-F16.gguf F16 ~50.9 GB Unquantized Base: Full 16-bit precision float model converted to GGUF format for reference or re-quantization.
Qwen3.8-27B-Q8_0.gguf Q8_0 ~27 GB Ultra High Precision: Virtually lossless quality compared to FP16.
Qwen3.8-27B-Q6_K.gguf Q6_K ~20.8 GB High Fidelity: Imperceptible quality drop; ideal for fully offloading on 24GB GPUs.
Qwen3.8-27B-Q5_K_M.gguf Q5_K_M ~18.1 GB Balanced Pick: Excellent trade-off between speed, memory, and reasoning/coding performance.
Qwen3.8-27B-Q5_K_S.gguf Q5_K_S ~17.6 GB Slightly smaller variant of Q5_K_M for tight VRAM limits.
Qwen3.8-27B-Q4_K_M.gguf Q4_K_M ~15.6 GB [Recommended] The sweet spot for daily usage with minimal quality degradation.
Qwen3.8-27B-Q4_K_S.gguf Q4_K_S ~14.7 GB Lighter 4-bit quantization to reduce memory footprint further.
Qwen3.8-27B-Q3_K_M.gguf Q3_K_M ~12.5 GB 3-bit medium quantization for low-resource or edge deployment.
Qwen3.8-27B-Q2_K.gguf Q2_K ~10.1 GB Extreme compression; recommended only for testing under severe memory constraints.

Quick Start & Usage

1. LM Studio / KoboldCPP / Ollama

  • LM Studio: Search for or drag-and-drop the chosen .gguf file to load.
  • Ollama: Create a Modelfile:
    FROM ./Qwen3.8-27B-Q4_K_M.gguf
    
    Then build and run:
    ollama create Qwen3.8-27B -f Modelfile
    ollama run Qwen3.8-27B
    

2. llama.cpp CLI

./llama-cli -m Qwen3.8-27B-Q4_K_M.gguf -p "Hello! Introduce yourself briefly." -n 512 -ngl 99

Quantization Details

  • Base Model: Qwen/Qwen3.8-27B (BF16 / FP16)
  • Conversion Tool: llama.cpp
  • Quant Scheme: Standard K-quants (F16, Q8_0, Q6_K, Q5_K_S/M, Q4_K_S/M, Q3_K_M, Q2_K)
  • Matrix Calibration: None (No imatrix required, ensuring universal applicability)

License

This repository inherits the license from the base model Qwen/Qwen3.8-27B under the Apache 2.0 license.

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