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openai/gpt-oss-20b

LM-STUDIO MLX

gpt_oss · 20B · MXFP4

Excellent

Mar 4, 2026 · Apple M4

qwen3.8:latest

OLLAMA GGUF

qwen35 · 27.3B · Q4_K_M

Good

Oct 2, 2026 · AMD Ryzen 9 5950X 16-Core Processor

Global Score
94 vs 68
Hardware Fit
100 vs 22
Quality Score
92 vs 88

Hardware

openai/gpt-oss-20b qwen3.8:latest
MachineMacBook AirSystem manufacturer
CPUApple M4AMD Ryzen 9 5950X 16-Core Processor
Cores1032
RAM32 GB32 GB
GPUApple M4NVIDIA GeForce RTX 3090
OSmacOS 26.3Microsoft Windows 11 Pro 10.0.26300
Archarm64x64
Power Modebalancedbalanced

Performance

openai/gpt-oss-20b qwen3.8:latest
Tokens/sec40.710.0
First chunk824 ms1041 ms
TTFT1.3 s14.3 s
Load timeN/A22.3 s
Memory usage11.3 GB26.2 GB
Memory %35%82%

HW Fit Score Breakdown

openai/gpt-oss-20b

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

qwen3.8:latest

Speed
12/50
TTFT
1/20
Memory
9/30

Quality

openai/gpt-oss-20b

Reasoning
20/20
Coding
18/20
Instruction
15/20
Structured
14/15
Math
15/15
Multilingual
10/10
Reasoning: Strong Coding: Strong Instruction Following: Strong Structured Output: Strong Math: Strong Multilingual: Strong

qwen3.8:latest

Reasoning
19/20
Coding
19/20
Instruction
10/20
Structured
15/15
Math
15/15
Multilingual
10/10
Reasoning: Strong Coding: Strong Instruction Following: Adequate 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