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openai/gpt-oss-20b

LM-STUDIO MLX

gpt_oss · 20B · MXFP4

Not Rec.

Jul 17, 2026 · Apple M5 Max

qwen3.5:9b

OLLAMA GGUF

qwen35 · 9.7B · Q4_K_M

Excellent

Mar 2, 2026 · Apple M4

Global Score
83 vs 80
Hardware Fit
80 vs 81
Quality Score
84 vs 80

Hardware

openai/gpt-oss-20b qwen3.5:9b
MachineMacBook ProMacBook Air
CPUApple M5 MaxApple M4
Cores1810
RAM64 GB32 GB
GPUApple M5 MaxApple M4
OSmacOS 27.0macOS 26.3
Archarm64arm64
Power Modebalancedbalanced

Performance

openai/gpt-oss-20b qwen3.5:9b
Tokens/sec131.711.8
First chunk7 msN/A
TTFT30.0 s523 ms
Load timeN/A2.9 s
Memory usage15.8 GB9.1 GB
Memory %25%28%

HW Fit Score Breakdown

openai/gpt-oss-20b

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

qwen3.5:9b

Speed
21/50
TTFT
30/20
Memory
30/30

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

qwen3.5:9b

Reasoning
14/20
Coding
16/20
Instruction
15/20
Structured
15/15
Math
10/15
Multilingual
10/10
Reasoning: Adequate Coding: Strong Instruction Following: Strong Structured Output: Strong Math: Adequate Multilingual: Strong
View openai/gpt-oss-20b details | View qwen3.5:9b details

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