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openai/gpt-oss-20b

LM-STUDIO MLX

gpt_oss · 20B · MXFP4

Excellent

Mar 4, 2026 · Apple M4

qwen3:4b

OLLAMA GGUF

qwen3 · 4.0B · Q4_K_M

Marginal

Mar 1, 2026 · Apple M4

Global Score
94 vs 47
Hardware Fit
100 vs 53
Quality Score
92 vs 45

Hardware

openai/gpt-oss-20b qwen3:4b
MachineMacBook AirMacBook Air
CPUApple M4Apple M4
Cores1010
RAM32 GB32 GB
GPUApple M4Apple M4
OSmacOS 26.3macOS 26.3
Archarm64arm64
Power Modebalancedunknown

Performance

openai/gpt-oss-20b qwen3:4b
Tokens/sec40.711.3
First chunk824 msN/A
TTFT1.3 s9.2 s
Load timeN/A0.1 s
Memory usage11.3 GB7.2 GB
Memory %35%23%

HW Fit Score Breakdown

openai/gpt-oss-20b

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

qwen3:4b

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

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

qwen3:4b

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

$ npm install -g metrillm@latest
$ metrillm

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Or run without installing: npx metrillm@latest