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openai/gpt-oss-20b

LM-STUDIO MLX

gpt_oss · 20B · MXFP4

Excellent

Mar 4, 2026 · Apple M4

qwen3.5:4b

OLLAMA GGUF

qwen35 · 4.7B · Q4_K_M

Not Rec.

Mar 5, 2026 · AMD RYZEN AI MAX+ 395

Global Score
94 vs 65
Hardware Fit
100 vs 73
Quality Score
92 vs 62

Hardware

openai/gpt-oss-20b qwen3.5:4b
MachineMacBook AirAZW GTR Pro
CPUApple M4AMD RYZEN AI MAX+ 395
Cores1032
RAM32 GB125 GB
GPUApple M4AMD Radeon 8060S
OSmacOS 26.3Ubuntu 24.04.4 LTS
Archarm64x64
Power Modebalancedlow-power

Performance

openai/gpt-oss-20b qwen3.5:4b
Tokens/sec40.745.7
First chunk824 ms180 ms
TTFT1.3 s30.0 s
Load timeN/A5.3 s
Memory usage11.3 GB16.2 GB
Memory %35%13%

HW Fit Score Breakdown

openai/gpt-oss-20b

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

qwen3.5:4b

Speed
43/50
TTFT
0/20
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

qwen3.5:4b

Reasoning
17/20
Coding
1/20
Instruction
13/20
Structured
8/15
Math
13/15
Multilingual
10/10
Reasoning: Strong Coding: Poor Instruction Following: Adequate Structured Output: Adequate Math: Strong Multilingual: Strong
View openai/gpt-oss-20b details | View qwen3.5:4b details

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