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openai/gpt-oss-20b

LM-STUDIO MLX

gpt_oss · 20B · MXFP4

Excellent

Mar 11, 2026 · Apple M4

microllm-50m:latest

OLLAMA GGUF

llama · 49.31M · F16

Not Rec.

Jun 28, 2026 · Apple M4 Pro

Global Score
95 vs 28
Hardware Fit
99 vs 80
Quality Score
93 vs 5

Hardware

openai/gpt-oss-20b microllm-50m:latest
MachineMac miniMac mini
CPUApple M4Apple M4 Pro
Cores1012
RAM24 GB24 GB
GPUApple M4Apple M4 Pro
OSmacOS 26.3macOS 15.6.1
Archarm64arm64
Power Modebalancedbalanced

Performance

openai/gpt-oss-20b microllm-50m:latest
Tokens/sec29.31000000.0
First chunk21 ms50 ms
TTFT1.8 s30.0 s
Load time18.5 s0.3 s
Memory usage0.0 GB0.1 GB
Memory %0%1%

HW Fit Score Breakdown

openai/gpt-oss-20b

Speed
50/50
TTFT
19/20
Memory
30/30

microllm-50m:latest

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

Quality

openai/gpt-oss-20b

Reasoning
19/20
Coding
18/20
Instruction
16/20
Structured
15/15
Math
15/15
Multilingual
10/10
Reasoning: Strong Coding: Strong Instruction Following: Strong Structured Output: Strong Math: Strong Multilingual: Strong

microllm-50m:latest

Reasoning
0/20
Coding
0/20
Instruction
5/20
Structured
0/15
Math
0/15
Multilingual
0/10
Reasoning: Poor Coding: Poor Instruction Following: Weak Structured Output: Poor Math: Poor Multilingual: Poor
View openai/gpt-oss-20b details | View microllm-50m:latest details

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$ metrillm

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Or run without installing: npx metrillm@latest