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openai/gpt-oss-20b

LM-STUDIO MLX

gpt_oss · 20B · MXFP4

Not Rec.

Jul 17, 2026 · Apple M5 Max

gemma-4-31b-it-qat

LM-STUDIO GGUF

gemma4 · 31B · Q4_K_XL

Excellent

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

Global Score
83 vs 91
Hardware Fit
80 vs 89
Quality Score
84 vs 92

Hardware

openai/gpt-oss-20b gemma-4-31b-it-qat
MachineMacBook ProASUS
CPUApple M5 MaxAMD Ryzen 7 7800X3D 8-Core Processor
Cores1816
RAM64 GB31 GB
GPUApple M5 MaxNVIDIA GeForce RTX 4090, Raphael
OSmacOS 27.0cachyos rolling
Archarm64x64
Power Modebalancedlow-power

Performance

openai/gpt-oss-20b gemma-4-31b-it-qat
Tokens/sec131.740.2
First chunk7 ms3 ms
TTFT30.0 s302 ms
Load timeN/AN/A
Memory usage15.8 GB18.8 GB
Memory %25%62%

HW Fit Score Breakdown

openai/gpt-oss-20b

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

gemma-4-31b-it-qat

Speed
50/50
TTFT
20/20
Memory
19/30

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

gemma-4-31b-it-qat

Reasoning
19/20
Coding
18/20
Instruction
17/20
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