openai/gpt-oss-20b
LM-STUDIO MLXgpt_oss · 20B · MXFP4
Oct 20, 2026 · Apple M1 Pro
openai/gpt-oss-20b
LM-STUDIO MLXgpt_oss · 20B · MXFP4
Sep 29, 2026 · Apple M5 Max
Global Score
83 vs 83
Hardware Fit
75 vs 80
Quality Score
87 vs 84
Hardware
openai/gpt-oss-20b openai/gpt-oss-20b
MachineMacBook ProMacBook Pro
CPUApple M1 ProApple M5 Max
Cores1018
RAM32 GB128 GB
GPUApple M1 ProApple M5 Max
OSmacOS 15.6.1macOS 26.6.2
Archarm64arm64
Power Modebalancedbalanced
Performance
openai/gpt-oss-20b openai/gpt-oss-20b
Tokens/sec43.2138.4
First chunk46 ms3 ms
TTFT30.0 s30.0 s
Load timeN/A6.8 s
Memory usage15.8 GB0.5 GB
Memory %49%0%
HW Fit Score Breakdown
openai/gpt-oss-20b
Speed
50/50
TTFT
0/20
Memory
25/30
openai/gpt-oss-20b
Speed
50/50
TTFT
0/20
Memory
30/30
Quality
openai/gpt-oss-20b
Reasoning
19/20
Coding
14/20
Instruction
15/20
Structured
14/15
Math
15/15
Multilingual
10/10
Reasoning: Strong Coding: Adequate Instruction Following: Strong Structured Output: Strong Math: Strong Multilingual: Strong
openai/gpt-oss-20b
Reasoning
18/20
Coding
12/20
Instruction
15/20
Structured
14/15
Math
15/15
Multilingual
10/10
Reasoning: Strong Coding: Adequate 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