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openai/gpt-oss-20b

LM-STUDIO MLX

gpt_oss · 20B · MXFP4

Excellent

Mar 11, 2026 · Apple M4

qwen3:4b

OLLAMA GGUF

qwen3 · 4.0B · Q4_K_M

Marginal

Mar 1, 2026 · Apple M4

Global Score
95 vs 47
Hardware Fit
99 vs 53
Quality Score
93 vs 45

Hardware

openai/gpt-oss-20b qwen3:4b
MachineMac miniMacBook Air
CPUApple M4Apple M4
Cores1010
RAM24 GB32 GB
GPUApple M4Apple M4
OSmacOS 26.3macOS 26.3
Archarm64arm64
Power Modebalancedunknown

Performance

openai/gpt-oss-20b qwen3:4b
Tokens/sec29.311.3
First chunk21 msN/A
TTFT1.8 s9.2 s
Load time18.5 s0.1 s
Memory usage0.0 GB7.2 GB
Memory %0%23%

HW Fit Score Breakdown

openai/gpt-oss-20b

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

qwen3:4b

Speed
17/50
TTFT
6/20
Memory
30/30

Quality

openai/gpt-oss-20b

Reasoning
19/20
Coding
18/20
Instruction
16/20
Structured
15/15
Math
15/15
Multilingual
10/10
Reasoning: Strong Coding: Strong Instruction Following: Strong Structured Output: Strong Math: Strong Multilingual: Strong

qwen3:4b

Reasoning
4/20
Coding
6/20
Instruction
8/20
Structured
6/15
Math
12/15
Multilingual
9/10
Reasoning: Poor Coding: Weak Instruction Following: Weak Structured Output: Weak Math: Strong Multilingual: Strong
View openai/gpt-oss-20b details | View qwen3:4b details

Run yours and compare

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$ metrillm

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Or run without installing: npx metrillm@latest