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openai/gpt-oss-20b

LM-STUDIO GGUF

gpt-oss · 20B · MXFP4

Excellent

Nov 9, 2026 · Apple M3 Max

gemma4:31b

OLLAMA GGUF

gemma4 · 31.3B · Q4_K_M

Not Rec.

Apr 13, 2026 · Apple M4 Max

Global Score
91 vs 76
Hardware Fit
90 vs 46
Quality Score
91 vs 89

Hardware

openai/gpt-oss-20b gemma4:31b
MachineMacBook ProMacBook Pro
CPUApple M3 MaxApple M4 Max
Cores1616
RAM128 GB64 GB
GPUApple M3 MaxApple M4 Max
OSmacOS 27.2macOS 26.3.1
Archarm64arm64
Power Modebalancedbalanced

Performance

openai/gpt-oss-20b gemma4:31b
Tokens/sec95.122.4
First chunk3 ms565 ms
TTFT2.5 s30.0 s
Load time9.2 s6.9 s
Memory usage0.0 GB43.9 GB
Memory %0%69%

HW Fit Score Breakdown

openai/gpt-oss-20b

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

gemma4:31b

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

Quality

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: 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
View openai/gpt-oss-20b details | View gemma4:31b details

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