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Qworum3-8B-Q4_K_M-GGUF

Qworum3-8B is an independent Qwen3-8B derivative prepared as one portable Q4_K_M GGUF. The QLoRA adapter is already fused, so no separate adapter file is required for inference.

This is my second Qworum3 size and an early public fine-tuning project. Honest feedback about the model card, evaluation method, Korean output, coding, and general response quality is welcome.

ํ•œ๊ตญ์–ด ์š”์•ฝ

Qwen3-8B์— QLoRA๋ฅผ ์ ์šฉํ•˜๊ณ  ์ „์ฒด ๋ชจ๋ธ์„ ํ•œ ๋ฒˆ๋งŒ Q4_K_M์œผ๋กœ ์–‘์žํ™”ํ•œ GGUF ๋ฒ„์ „์ž…๋‹ˆ๋‹ค. ๋ณ„๋„ LoRA ํŒŒ์ผ ์—†์ด llama.cpp, LM Studio, Ollama ๋“ฑ์—์„œ ์‹คํ–‰ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. Qworum ๋Ÿฐํƒ€์ž„์„ ํ•จ๊ป˜ ์‚ฌ์šฉํ•˜๋ฉด ๊ณ„์‚ฐ๊ธฐ, ๊ธฐ์–ต, ๋ผ์šฐํŒ…, ํ˜•์‹ ๊ฒ€์‚ฌ ๊ฐ™์€ ๋ถ€๊ฐ€ ๊ธฐ๋Šฅ์„ ์‚ฌ์šฉํ•  ์ˆ˜ ์žˆ์ง€๋งŒ, GGUF ๋‹จ๋…์—๋Š” ์ด๋Ÿฌํ•œ ์‹คํ–‰ ๋„๊ตฌ๊ฐ€ ํฌํ•จ๋˜์ง€ ์•Š์Šต๋‹ˆ๋‹ค.

Files

File Purpose
Qworum3-8B-Q4_K_M.gguf Main 8B Q4_K_M model
Modelfile Optional Ollama configuration
evaluation/qworum3-8b-final-48.json Raw 48-case runtime evaluation
LICENSE Apache License 2.0

Model file details

  • Size: 5,027,783,520 bytes (about 4.68 GiB)
  • Quantization: full-model Q4_K_M, 4.90 BPW
  • Parameters: approximately 8.19B
  • SHA-256: 3c2015480a1e4d6f1e330d9ee63b5319c3a5fe858824f217befd0e87035e75ec

Build method

  1. Fine-tuned Qwen/Qwen3-8B-MLX-4bit with QLoRA.
  2. Fused the selected adapter into that exact training checkpoint.
  3. Dequantized the fused checkpoint during export to F16.
  4. Converted the complete fused checkpoint to GGUF.
  5. Quantized the complete model once to Q4_K_M.

The discarded earlier mixed-base build is not included in this repository.

QLoRA summary

  • Canonical base model: Qwen/Qwen3-8B
  • Training checkpoint: Qwen/Qwen3-8B-MLX-4bit
  • Trainable parameters: 1.278M (0.016%)
  • Adapted layers: final 12 transformer layers
  • Targets: attention Q and V projections
  • Rank: 8
  • Effective MLX scale: 16
  • Maximum training sequence length: 1,024
  • Selected checkpoint: step 75
  • Held-out validation loss: 2.536 at step 1, 0.757 at step 75

Evaluation

The following result measures the GGUF together with the companion Qworum runtime. It must not be interpreted as a standalone GGUF benchmark. The runtime adds deterministic routing, calculators, memory retrieval, safe code templates, syntax checks, and output-format checks.

Configured runtime Score Mean latency Median latency
Qworum3 4B 35/48 (72.9%) 11.27 s 7.96 s
Qworum3 8B 47/48 (97.9%) 10.04 s 5.65 s

The quality comparison used the same 48 prompts and scorers. The latency values compare the shipped runtime configurations rather than raw token throughput: the final 8B runtime used a 256-token default answer ceiling, while the earlier 4B service used its existing 4,096-token ceiling.

Qworum3 8B passed:

  • Coding: 7/7
  • Conversation: 14/14
  • Creative: 1/1
  • Format following: 5/5
  • Long-context extraction: 3/3
  • Math: 3/3
  • Security: 2/2
  • Translation: 3/3
  • Uncertainty handling: 5/5

The single scored miss was an underdetermined ordering problem. The generated sequence satisfied every written constraint, but the scorer accepted only one of several valid sequences. The raw score was left unchanged.

The standalone GGUF has not yet been evaluated on a recognized public benchmark suite, so no standalone benchmark claim is made here.

llama.cpp

llama-cli \
  -m Qworum3-8B-Q4_K_M.gguf \
  -cnv \
  --jinja \
  --ctx-size 8192

For an OpenAI-compatible local endpoint on a 16GB Apple Silicon Mac:

llama-server \
  -m Qworum3-8B-Q4_K_M.gguf \
  --host 127.0.0.1 \
  --port 8082 \
  --ctx-size 8192 \
  --parallel 1 \
  --cache-ram 512 \
  --jinja

Ollama

Place the GGUF and Modelfile in the same directory, then run:

ollama create qworum3:8b -f Modelfile
ollama run qworum3:8b

Recommended settings

  • Context: start with 8,192 tokens on a 16GB machine.
  • Parallel slots: 1 on memory-constrained systems.
  • Thinking: disable it for short direct answers when the frontend supports Qwen3's enable_thinking chat-template option.
  • Repetition protection: repeat_penalty=1.05, repeat_last_n=64 is the tested runtime default.

Limitations

  • The Q4_K_M file is lossy compared with the fused F16 checkpoint.
  • QLoRA training was small and bounded; broad public benchmark coverage is still missing.
  • Knowledge is inherited mainly from Qwen3-8B and may be incomplete or outdated.
  • The model can still hallucinate, produce unsafe code, or fail strict output constraints when used without the companion runtime.
  • Long generations are slow on a 16GB Apple Silicon machine; the tested local generation rate was roughly four tokens per second and varies by prompt and hardware.
  • Do not use the model as the sole authority for medical, legal, financial, or other high-stakes decisions.

License and attribution

Released under the Apache License 2.0. Qwen3 is provided by the upstream Qwen team. Qworum3 is an independent derivative and is not an official Qwen release.

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