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openai/gpt-oss-20b

LM-STUDIO GGUF

gpt-oss · 20B · MXFP4

Not Rec.

Jul 5, 2026 · AMD Ryzen 7 7800X3D 8-Core Processor

gemma4:31b

OLLAMA GGUF

gemma4 · 31.3B · Q4_K_M

Not Rec.

Apr 13, 2026 · Apple M4 Max

Global Score
84 vs 76
Hardware Fit
65 vs 46
Quality Score
92 vs 89

Hardware

openai/gpt-oss-20b gemma4:31b
MachineASUSMacBook Pro
CPUAMD Ryzen 7 7800X3D 8-Core ProcessorApple M4 Max
Cores1616
RAM31 GB64 GB
GPUNVIDIA GeForce RTX 4090, RaphaelApple M4 Max
OScachyos rollingmacOS 26.3.1
Archx64arm64
Power Modeperformancebalanced

Performance

openai/gpt-oss-20b gemma4:31b
Tokens/sec221.522.4
First chunk5 ms565 ms
TTFT30.0 s30.0 s
Load timeN/A6.9 s
Memory usage21.1 GB43.9 GB
Memory %69%69%

HW Fit Score Breakdown

openai/gpt-oss-20b

Speed
50/50
TTFT
0/20
Memory
15/30

gemma4:31b

Speed
30/50
TTFT
0/20
Memory
16/30

Quality

openai/gpt-oss-20b

Reasoning
19/20
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

gemma4:31b

Reasoning
16/20
Coding
19/20
Instruction
16/20
Structured
15/15
Math
14/15
Multilingual
9/10
Reasoning: Strong Coding: Strong 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