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openai/gpt-oss-20b

LM-STUDIO MLX

gpt_oss · 20B · MXFP4

Excellent

Mar 4, 2026 · Apple M4

nemotron-3-nano:4b

OLLAMA GGUF

nemotron_h · 4.0B · Q4_K_M

Excellent

Oct 12, 2026 · AMD Ryzen 5 5500

Global Score
94 vs 95
Hardware Fit
100 vs 99
Quality Score
92 vs 93

Hardware

openai/gpt-oss-20b nemotron-3-nano:4b
MachineMacBook AirMicrosoft WSL
CPUApple M4AMD Ryzen 5 5500
Cores1012
RAM32 GB8 GB
GPUApple M4Integrated / Unknown
OSmacOS 26.3Ubuntu 26.04.1 LTS
Archarm64x64
Power Modebalancedunknown

Performance

openai/gpt-oss-20b nemotron-3-nano:4b
Tokens/sec40.7107.6
First chunk824 ms361 ms
TTFT1.3 s1.1 s
Load timeN/A7.9 s
Memory usage11.3 GB2.6 GB
Memory %35%34%

HW Fit Score Breakdown

openai/gpt-oss-20b

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

nemotron-3-nano:4b

Speed
50/50
TTFT
20/20
Memory
29/30

Quality

openai/gpt-oss-20b

Reasoning
20/20
Coding
18/20
Instruction
15/20
Structured
14/15
Math
15/15
Multilingual
10/10
Reasoning: Strong Coding: Strong Instruction Following: Strong Structured Output: Strong Math: Strong Multilingual: Strong

nemotron-3-nano:4b

Reasoning
19/20
Coding
16/20
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

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