openai/gpt-oss-20b

LM-STUDIO MLX

gpt_oss · 20B · MXFP4

Not Rec.

Jul 17, 2026 · Apple M5 Max

phi-1_5

LM-STUDIO GGUF

phi2 · Q8_0

Not Rec.

Mar 6, 2026 · Intel Core™ i5-5300U

Global Score

83 vs 28

Hardware Fit

80 vs 66

Quality Score

84 vs 11

Hardware

openai/gpt-oss-20b phi-1_5

MachineMacBook ProLENOVO 20BUS00700

CPUApple M5 MaxIntel Core™ i5-5300U

Cores184

RAM64 GB16 GB

GPUApple M5 MaxIntel(R) HD Graphics 5500

OSmacOS 27.0Microsoft Windows 10 Professionnel 10.0.19045

Archarm64x64

Power Modebalancedbalanced

Performance

openai/gpt-oss-20b phi-1_5

Tokens/sec131.76.9

First chunk7 ms3040 ms

TTFT30.0 s3.0 s

Load timeN/AN/A

Memory usage15.8 GB1.4 GB

Memory %25%9%

HW Fit Score Breakdown

openai/gpt-oss-20b

Speed

50/50

TTFT

0/20

Memory

30/30

phi-1_5

Speed

24/50

TTFT

16/20

Memory

26/30

Quality

openai/gpt-oss-20b

Reasoning

18/20

Coding

13/20

Instruction

14/20

Structured

14/15

Math

15/15

Multilingual

10/10

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

phi-1_5

Reasoning

2/20

Coding

2/20

Instruction

3/20

Structured

0/15

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-1_5 details

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$ metrillm

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Or run without installing: npx metrillm@latest