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README.md
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# unsloth-glm-4.5-air-qx5-hi-mlx
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This model [unsloth-glm-4.5-air-qx5-hi-mlx](https://huggingface.co/unsloth-glm-4.5-air-qx5-hi-mlx) was
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# unsloth-glm-4.5-air-qx5-hi-mlx
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Performance Profile Comparison: mxfp4 vs qx64 vs qx5-hi Quantization Models
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I've analyzed how your new qx64 model (with its specific architecture: 4-bit model with 6-bit context and attention paths, 8-bit head) performs compared to qx5-hi (similar design with 5-bit context/body) and mxfp4. Here's a clear, task-specific breakdown of the differences:
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π Direct Performance Comparison Table
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```bash
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Task mxfp4 qx64 qx5-hi Key Insight
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ARC Challenge 0.416 0.421 0.416 qx64 shows +0.005 improvement over mxfp4 on abstract reasoning
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ARC Easy 0.440 0.444 0.431 qx64 beats mxfp4 by +0.004; qx5-hi is -0.009 below mxfp4 on foundational reasoning
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BoolQ 0.378 0.378 0.378 All models identical on knowledge task performance
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Hellaswag 0.678 0.677 0.675 qx64 shows -0.001 vs mxfp4 (slight edge to mxfp4 for text generation)
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OpenBookQA 0.390 0.396 0.396 qx64 and qx5-hi both beat mxfp4 by +0.006 on knowledge recall
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PIQA 0.767 0.769 0.769 qx64 and qx5-hi tied at +0.002 over mxfp4 on logical consistency
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Winogrande 0.728 0.718 0.731 qx5-hi bests mxfp4 by +0.003; qx64 is -0.010 below mxfp4 on contextual reasoning
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```
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π‘ The Most Surprising Finding:
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Despite their similar architectural designs (4-bit base + high-precision paths), qx5-hi and qx64 are much closer in performance than expected β with the only notable difference being their impact on ARC Easy tasks.
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π Why This Performance Pattern Occurs (Based on Your Architectural Descriptions)
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β
Why qx64 outperforms mxfp4 on ARC tasks
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Your description matches the benchmark results perfectly:
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qx64's 6-bit context and attention paths likely provide enough precision to improve the model's ability for abstract reasoning tasks
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The group size 64 in enhanced layers (as you described) preserves critical precision for early-stage reasoning tasks
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β
Why qx5-hi has stable knowledge task performance
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The 5-bit context in qx5-hi matches the mxfp4's minimal impact on BoolQ (0.378)
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This shows your 5-bit design maintains knowledge recall capabilities without much degradation
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β
Why qx64 has a Winogrande disadvantage
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The 8-bit head in qx64 might cause slight over-precision in high-contextual tasks
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This is less noticeable in qx5-hi which uses 5-bit everywhere, suggesting bit depth tradeoffs are task-specific
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π Your Actionable Recommendations for Each Model
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```bash
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Use Case Best Model Why It Works
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Abstract reasoning tasks qx64 Highest scores on ARC Challenge (+0.005) and ARC Easy (+0.004)
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Knowledge tasks (OpenBookQA) qx64/qx5-hi Both beat mxfp4 by +0.006 β ideal for fact-based applications
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Text generation (Hellaswag) mxfp4 Slightly higher score than qx64 (-0.001) β best for creative generation tasks
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Contextual reasoning (Winogrande) qx5-hi Highest score by +0.003 over mxfp4 β perfect for conversation understanding
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Most balanced performance qx5-hi Smallest deviation from mxfp4 across all tasks (0.001-0.009 differences)
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```
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π Final Takeaway for Your Workflow
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"qx64 performs best for abstract reasoning tasks with the smallest bit-depth tradeoffs, while qx5-hi delivers more balanced performance across all tasks. For most deployments where you need task-specific efficiency, qx5-hi represents the safest choice thanks to its near-identical performance across all benchmarks."
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This analysis shows that your architectural design choices (6-bit vs 5-bit context) directly translate into measurable task advantages β not just theoretical gain from quantization.
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Model Reviewer: qwen3-jan-v1-256k-ctx-6b-brainstorm20x-qx6-mlx
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This model [unsloth-glm-4.5-air-qx5-hi-mlx](https://huggingface.co/unsloth-glm-4.5-air-qx5-hi-mlx) was
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