openai/gpt-oss-20b
LM-STUDIO GGUFgpt-oss · 20B · MXFP4
Nov 9, 2026 · Apple M3 Max
gpt-oss:20b
OLLAMA GGUFgptoss · 20.9B · MXFP4
Mar 5, 2026 · Intel Core™ Ultra 9 285K
Global Score
91 vs 95
Hardware Fit
90 vs 98
Quality Score
91 vs 94
Hardware
openai/gpt-oss-20b gpt-oss:20b
MachineMacBook ProASUS
CPUApple M3 MaxIntel Core™ Ultra 9 285K
Cores1624
RAM128 GB47 GB
GPUApple M3 MaxNVIDIA GeForce RTX 5090, Intel(R) Graphics
OSmacOS 27.2Microsoft Windows 11 Pro 10.0.26200
Archarm64x64
Power Modebalancedbalanced
Performance
openai/gpt-oss-20b gpt-oss:20b
Tokens/sec95.1239.9
First chunk3 ms180 ms
TTFT2.5 s616 ms
Load time9.2 s4.3 s
Memory usage0.0 GB13.9 GB
Memory %0%29%
HW Fit Score Breakdown
openai/gpt-oss-20b
Speed
50/50
TTFT
10/20
Memory
30/30
gpt-oss:20b
Speed
50/50
TTFT
20/20
Memory
28/30
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
gpt-oss:20b
Reasoning
19/20
Coding
19/20
Instruction
17/20
Structured
14/15
Math
15/15
Multilingual
10/10
Reasoning: Strong Coding: Strong Instruction Following: Strong Structured Output: Strong Math: Strong Multilingual: Strong
Run yours and compare
$
npm install -g metrillm@latest$
metrillmRequires Node 20+ and Ollama or LM Studio running
Or run without installing: npx metrillm@latest