openai/gpt-oss-20b
LM-STUDIO MLXgpt_oss · 20B · MXFP4
Jul 17, 2026 · Apple M5 Max
gpt-oss:20b
OLLAMA GGUFgptoss · 20.9B · MXFP4
Mar 5, 2026 · Intel Core™ Ultra 9 285K
Global Score
83 vs 95
Hardware Fit
80 vs 98
Quality Score
84 vs 94
Hardware
openai/gpt-oss-20b gpt-oss:20b
MachineMacBook ProASUS
CPUApple M5 MaxIntel Core™ Ultra 9 285K
Cores1824
RAM64 GB47 GB
GPUApple M5 MaxNVIDIA GeForce RTX 5090, Intel(R) Graphics
OSmacOS 27.0Microsoft Windows 11 Pro 10.0.26200
Archarm64x64
Power Modebalancedbalanced
Performance
openai/gpt-oss-20b gpt-oss:20b
Tokens/sec131.7239.9
First chunk7 ms180 ms
TTFT30.0 s616 ms
Load timeN/A4.3 s
Memory usage15.8 GB13.9 GB
Memory %25%29%
HW Fit Score Breakdown
openai/gpt-oss-20b
Speed
50/50
TTFT
0/20
Memory
30/30
gpt-oss:20b
Speed
50/50
TTFT
20/20
Memory
28/30
Quality
openai/gpt-oss-20b
Reasoning
18/20
Coding
13/20
Instruction
14/20
Structured
14/15
Math
15/15
Multilingual
10/10
Reasoning: Strong Coding: Adequate Instruction Following: Adequate 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