openai/gpt-oss-20b
LM-STUDIO MLXgpt_oss · 20B · MXFP4
Jul 17, 2026 · Apple M5 Max
gptoss · 20.9B · MXFP4
OLLAMA GGUFgptoss · 20.9 · MXFP4
Jul 9, 2026 · Intel Core™ i5-10400
Global Score
83 vs 84
Hardware Fit
80 vs 69
Quality Score
84 vs 91
Hardware
openai/gpt-oss-20b gptoss · 20.9B · M…
MachineMacBook ProMac Pro
CPUApple M5 MaxIntel Core™ i5-10400
Cores1812
RAM64 GB32 GB
GPUApple M5 MaxAMD Radeon RX 6700 XT
OSmacOS 27.0macOS 26.5.1
Archarm64x64
Power Modebalancedbalanced
Performance
openai/gpt-oss-20b gptoss · 20.9B · M…
Tokens/sec131.717.5
First chunk7 ms643 ms
TTFT30.0 s7.7 s
Load timeN/A0.0 s
Memory usage15.8 GB0.8 GB
Memory %25%3%
HW Fit Score Breakdown
openai/gpt-oss-20b
Speed
50/50
TTFT
0/20
Memory
30/30
gptoss · 20.9B · MXFP4
Speed
34/50
TTFT
5/20
Memory
30/30
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
gptoss · 20.9B · MXFP4
Reasoning
19/20
Coding
19/20
Instruction
13/20
Structured
15/15
Math
15/15
Multilingual
10/10
Reasoning: Strong Coding: Strong Instruction Following: Adequate Structured Output: Strong Math: Strong Multilingual: Strong
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npm install -g metrillm@latest$
metrillmRequires Node 20+ and Ollama or LM Studio running
Or run without installing: npx metrillm@latest