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gpt-oss:20b

OLLAMA GGUF

gptoss · 20.9B · MXFP4

Excellent

Mar 10, 2026 · Apple M4

openai/gpt-oss-20b

LM-STUDIO GGUF

gpt-oss · 20B · MXFP4

Excellent

Apr 24, 2026 · AMD Ryzen 5 5500

Global Score
83 vs 90
Hardware Fit
65 vs 88
Quality Score
90 vs 91

Hardware

gpt-oss:20b openai/gpt-oss-20b
MachineMac miniASUS
CPUApple M4AMD Ryzen 5 5500
Cores1012
RAM24 GB31 GB
GPUApple M4Navi 44 [Radeon RX 9060 XT]
OSmacOS 26.3Nobara Linux 43
Archarm64x64
Power Modebalancedperformance

Performance

gpt-oss:20b openai/gpt-oss-20b
Tokens/sec17.158.7
First chunk705 ms6 ms
TTFT10.2 s4.5 s
Load time23.1 sN/A
Memory usage13.1 GB11.9 GB
Memory %55%38%

HW Fit Score Breakdown

gpt-oss:20b

Speed
37/50
TTFT
5/20
Memory
23/30

openai/gpt-oss-20b

Speed
50/50
TTFT
10/20
Memory
28/30

Quality

gpt-oss:20b

Reasoning
19/20
Coding
18/20
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

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: Adequate Instruction Following: Strong Structured Output: Strong Math: Strong Multilingual: Strong

Run yours and compare

$ npm install -g metrillm@latest
$ metrillm

Requires Node 20+ and Ollama or LM Studio running

Or run without installing: npx metrillm@latest