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openai/gpt-oss-20b

LM-STUDIO GGUF

gpt-oss · 20B · MXFP4

Excellent

Nov 9, 2026 · Apple M3 Max

qwen3.5:27b

OLLAMA GGUF

qwen35 · 27.8B · Q4_K_M

Good

Mar 6, 2026 · AMD RYZEN AI MAX+ 395 w/ Radeon 8060S

Global Score
91 vs 79
Hardware Fit
90 vs 57
Quality Score
91 vs 89

Hardware

openai/gpt-oss-20b qwen3.5:27b
MachineMacBook ProAZW GTR Pro
CPUApple M3 MaxAMD RYZEN AI MAX+ 395 w/ Radeon 8060S
Cores1632
RAM128 GB125 GB
GPUApple M3 MaxIntegrated / Apple Silicon
OSmacOS 27.2Ubuntu 24.04.4 LTS
Archarm64x64
Power Modebalancedperformance

Performance

openai/gpt-oss-20b qwen3.5:27b
Tokens/sec95.110.7
First chunk3 ms341 ms
TTFT2.5 s341 ms
Load time9.2 s10.2 s
Memory usage0.0 GB39.7 GB
Memory %0%32%

HW Fit Score Breakdown

openai/gpt-oss-20b

Speed
50/50
TTFT
10/20
Memory
30/30

qwen3.5:27b

Speed
9/50
TTFT
20/20
Memory
28/30

Quality

openai/gpt-oss-20b

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

qwen3.5:27b

Reasoning
17/20
Coding
19/20
Instruction
16/20
Structured
15/15
Math
12/15
Multilingual
10/10
Reasoning: Strong Coding: Strong Instruction Following: Strong Structured Output: Strong Math: Strong Multilingual: Strong
View openai/gpt-oss-20b details | View qwen3.5:27b details

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