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gpt-oss:20b

OLLAMA GGUF

gptoss · 20.9B · MXFP4

Excellent

Mar 10, 2026 · Apple M4

lmstudio-community/Phi-4-reasoning-plus-MLX-4bit

LM-STUDIO GGUF
Not Rec.

Mar 5, 2026 · Apple M4

Global Score
83 vs 33
Hardware Fit
65 vs 74
Quality Score
90 vs 15

Hardware

gpt-oss:20b lmstudio-community…
MachineMac miniMacBook Air
CPUApple M4Apple M4
Cores1010
RAM24 GB32 GB
GPUApple M4Apple M4
OSmacOS 26.3macOS 26.3
Archarm64arm64
Power Modebalancedbalanced

Performance

gpt-oss:20b lmstudio-community…
Tokens/sec17.111.5
First chunk705 ms670 ms
TTFT10.2 s670 ms
Load time23.1 sN/A
Memory usage13.1 GB3.0 GB
Memory %55%9%

HW Fit Score Breakdown

gpt-oss:20b

Speed
37/50
TTFT
5/20
Memory
23/30

lmstudio-community/Phi-…

Speed
24/50
TTFT
20/20
Memory
30/30

Quality

gpt-oss:20b

Reasoning
19/20
Coding
18/20
Instruction
13/20
Structured
15/15
Math
15/15
Multilingual
10/10
Reasoning: Strong Coding: Strong Instruction Following: Adequate Structured Output: Strong Math: Strong Multilingual: Strong

lmstudio-community/Phi-…

Reasoning
8/20
Coding
1/20
Instruction
1/20
Structured
1/15
Math
1/15
Multilingual
3/10
Reasoning: Weak Coding: Poor Instruction Following: Poor Structured Output: Poor Math: Poor Multilingual: Weak
View gpt-oss:20b details | View lmstudio-community… details

Run yours and compare

$ npm install -g metrillm@latest
$ metrillm

Requires Node 20+ and Ollama or LM Studio running

Or run without installing: npx metrillm@latest