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openai/gpt-oss-20b

LM-STUDIO GGUF

gpt-oss · 20B · MXFP4

Excellent

Nov 9, 2026 · Apple M3 Max

qwen3.6:35b-mlx

OLLAMA GGUF

nvfp4

Excellent

Jul 17, 2026 · Apple M5 Max

Global Score
91 vs 89
Hardware Fit
90 vs 97
Quality Score
91 vs 86

Hardware

openai/gpt-oss-20b qwen3.6:35b-mlx
MachineMacBook ProMacBook Pro
CPUApple M3 MaxApple M5 Max
Cores1618
RAM128 GB48 GB
GPUApple M3 MaxApple M5 Max
OSmacOS 27.2macOS 26.5.2
Archarm64arm64
Power Modebalancedbalanced

Performance

openai/gpt-oss-20b qwen3.6:35b-mlx
Tokens/sec95.1129.4
First chunk3 ms49 ms
TTFT2.5 s49 ms
Load time9.2 s0.0 s
Memory usage0.0 GB20.5 GB
Memory %0%43%

HW Fit Score Breakdown

openai/gpt-oss-20b

Speed
50/50
TTFT
10/20
Memory
30/30

qwen3.6:35b-mlx

Speed
50/50
TTFT
20/20
Memory
27/30

Quality

openai/gpt-oss-20b

Reasoning
18/20
Coding
15/20
Instruction
18/20
Structured
15/15
Math
15/15
Multilingual
10/10
Reasoning: Strong Coding: Strong Instruction Following: Strong Structured Output: Strong Math: Strong Multilingual: Strong

qwen3.6:35b-mlx

Reasoning
15/20
Coding
18/20
Instruction
16/20
Structured
15/15
Math
12/15
Multilingual
10/10
Reasoning: Adequate Coding: Strong Instruction Following: Strong Structured Output: Strong Math: Strong Multilingual: Strong
View openai/gpt-oss-20b details | View qwen3.6:35b-mlx details

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$ metrillm

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Or run without installing: npx metrillm@latest