openai/gpt-oss-20b
LM-STUDIO MLXgpt_oss · 20B · MXFP4
Oct 20, 2026 · Apple M1 Pro
spark-x2.5-4b
LM-STUDIO GGUFspark2_5 · 4B · Q4_K_M
Sep 30, 2026 · AMD Ryzen 7 4800H
Global Score
83 vs 77
Hardware Fit
75 vs 90
Quality Score
87 vs 71
Hardware
openai/gpt-oss-20b spark-x2.5-4b
MachineMacBook ProASUSTeK COMPUTER INC. ROG Strix G513IM_G513IM
CPUApple M1 ProAMD Ryzen 7 4800H
Cores1016
RAM32 GB15 GB
GPUApple M1 ProAMD Radeon(TM) Graphics, NVIDIA GeForce RTX 3060 Laptop GPU
OSmacOS 15.6.1Microsoft Windows 11 Pro 10.0.26200
Archarm64x64
Power Modebalancedbalanced
Performance
openai/gpt-oss-20b spark-x2.5-4b
Tokens/sec43.248.9
First chunk46 ms20 ms
TTFT30.0 s168 ms
Load timeN/AN/A
Memory usage15.8 GB9.4 GB
Memory %49%61%
HW Fit Score Breakdown
openai/gpt-oss-20b
Speed
50/50
TTFT
0/20
Memory
25/30
spark-x2.5-4b
Speed
50/50
TTFT
20/20
Memory
20/30
Quality
openai/gpt-oss-20b
Reasoning
19/20
Coding
14/20
Instruction
15/20
Structured
14/15
Math
15/15
Multilingual
10/10
Reasoning: Strong Coding: Adequate Instruction Following: Strong Structured Output: Strong Math: Strong Multilingual: Strong
spark-x2.5-4b
Reasoning
13/20
Coding
14/20
Instruction
16/20
Structured
15/15
Math
4/15
Multilingual
9/10
Reasoning: Adequate Coding: Adequate Instruction Following: Strong Structured Output: Strong Math: Weak Multilingual: Strong
Run yours and compare
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npm install -g metrillm@latest$
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Or run without installing: npx metrillm@latest