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GPT Oss 20B MXFP4 Q4 by mlx-community

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  4-bit   Base model:openai/gpt-oss-20b Base model:quantized:openai/gp...   Conversational   Gpt oss   Mlx   Q4   Quantized   Region:us   Safetensors   Sharded   Tensorflow   Vllm
Model Card on HF 🤗: https://huggingface.co/mlx-community/gpt-oss-20b-MXFP4-Q4 

GPT Oss 20B MXFP4 Q4 Benchmarks

LLME Score: 0.30892
nn.n% — How the model compares to the reference models: Anthropic Sonnet 3.5 ("so35"), GPT-4o ("gpt4o") or GPT-4 ("gpt4").
GPT Oss 20B MXFP4 Q4 (mlx-community/gpt-oss-20b-MXFP4-Q4)
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GPT Oss 20B MXFP4 Q4 Parameters and Internals

LLM NameGPT Oss 20B MXFP4 Q4
Repository 🤗https://huggingface.co/mlx-community/gpt-oss-20b-MXFP4-Q4 
Base Model(s)  GPT Oss 20B   openai/gpt-oss-20b
Model Size20b
Required VRAM11.2 GB
Updated2025-09-05
Maintainermlx-community
Model Typegpt_oss
Model Files  5.3 GB: 1-of-3   5.3 GB: 2-of-3   0.6 GB: 3-of-3
Quantization Typeq4
Model ArchitectureGptOssForCausalLM
Licenseapache-2.0
Context Length131072
Model Max Length131072
Transformers Version4.55.0.dev0
Tokenizer ClassPreTrainedTokenizer
Padding Token<|endoftext|>
Vocabulary Size201088

Best Alternatives to GPT Oss 20B MXFP4 Q4

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GPT Oss 20B MLX 8bit128K / 22.1 GB169645136
GPT Oss 20B MXFP4 Q8128K / 12.1 GB1663935
GPT Oss 20B Unsloth Bnb 4bit128K / 12.6 GB16558923
GPT Oss 20B Bnb 4bit128K / 40.8 GB5636212
GPT Oss Coder 20B128K / 13.8 GB1556
GPT Oss 20B128K / 13.8 GB95357413420
GPT Oss 20B GGUF128K / 11.5 GB605609364
GPT Oss 20B128K / 13.8 GB5272828
GPT Oss 20B BF16128K / 41.6 GB4728819
GPT Oss 20B Dequantized128K / 41.6 GB49800
Note: green Score (e.g. "73.2") means that the model is better than mlx-community/gpt-oss-20b-MXFP4-Q4.

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Release v20241124
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