openai/gpt-oss-20b

LM-STUDIO MLX

gpt_oss · 20B · MXFP4

Not Rec.

Mar 19, 2026 · Apple M4

phi-3-mini-128k-instruct

LM-STUDIO MLX

phi3 · 4bit

Not Rec.

Mar 4, 2026 · Apple M4

Global Score

77 vs 38

Hardware Fit

67 vs 100

Quality Score

81 vs 12

Hardware

openai/gpt-oss-20b phi-3-mini-128k-in…

MachineMac miniMacBook Air

CPUApple M4Apple M4

Cores1010

RAM24 GB32 GB

GPUApple M4Apple M4

OSmacOS 26.3macOS 26.3

Archarm64arm64

Power Modebalancedbalanced

Performance

openai/gpt-oss-20b phi-3-mini-128k-in…

Tokens/sec30.544.0

First chunk18 ms384 ms

TTFT30.0 s385 ms

Load timeN/AN/A

Memory usage15.8 GB2.0 GB

Memory %66%6%

HW Fit Score Breakdown

openai/gpt-oss-20b

Speed

50/50

TTFT

0/20

Memory

17/30

phi-3-mini-128k-instruct

Speed

50/50

TTFT

20/20

Memory

30/30

Quality

openai/gpt-oss-20b

Reasoning

19/20

Coding

11/20

Instruction

12/20

Structured

15/15

Math

14/15

Multilingual

10/10

Reasoning: Strong Coding: Adequate Instruction Following: Adequate Structured Output: Strong Math: Strong Multilingual: Strong

phi-3-mini-128k-instruct

Reasoning

3/20

Coding

2/20

Instruction

2/20

Structured

1/15

Math

2/15

Multilingual

2/10

Reasoning: Poor Coding: Poor Instruction Following: Poor Structured Output: Poor Math: Poor Multilingual: Poor

View openai/gpt-oss-20b details | View phi-3-mini-128k-in… 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