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openai/gpt-oss-20b

LM-STUDIO GGUF

gpt-oss · 20B · MXFP4

Excellent

Nov 9, 2026 · Apple M3 Max

mistralai/devstral-small-2-2512

LM-STUDIO MLX

mistral3 · 24B · 4bit

Good

Mar 4, 2026 · Apple M4

Global Score
91 vs 69
Hardware Fit
90 vs 50
Quality Score
91 vs 77

Hardware

openai/gpt-oss-20b mistralai/devstral…
MachineMacBook ProMacBook Air
CPUApple M3 MaxApple M4
Cores1610
RAM128 GB32 GB
GPUApple M3 MaxApple M4
OSmacOS 27.2macOS 26.3
Archarm64arm64
Power Modebalancedbalanced

Performance

openai/gpt-oss-20b mistralai/devstral…
Tokens/sec95.15.7
First chunk3 ms5007 ms
TTFT2.5 s5.0 s
Load time9.2 sN/A
Memory usage0.0 GB13.2 GB
Memory %0%41%

HW Fit Score Breakdown

openai/gpt-oss-20b

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

mistralai/devstral-smal…

Speed
11/50
TTFT
9/20
Memory
30/30

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

mistralai/devstral-smal…

Reasoning
16/20
Coding
18/20
Instruction
13/20
Structured
14/15
Math
6/15
Multilingual
10/10
Reasoning: Strong Coding: Strong Instruction Following: Adequate Structured Output: Strong Math: Weak Multilingual: Strong
View openai/gpt-oss-20b details | View mistralai/devstral… details

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