openai/gpt-oss-20b
LM-STUDIO MLXgpt_oss · 20B · MXFP4
Oct 20, 2026 · Apple M1 Pro
yi:6b
OLLAMA GGUFllama · 6B · Q4_0
Mar 1, 2026 · Apple M4
Global Score
83 vs 77
Hardware Fit
75 vs 100
Quality Score
87 vs 67
Hardware
openai/gpt-oss-20b yi:6b
MachineMacBook ProMacBook Air
CPUApple M1 ProApple M4
Cores1010
RAM32 GB32 GB
GPUApple M1 ProApple M4
OSmacOS 15.6.1macOS 26.3
Archarm64arm64
Power Modebalancedbalanced
Performance
openai/gpt-oss-20b yi:6b
Tokens/sec43.227.6
First chunk46 msN/A
TTFT30.0 s210 ms
Load timeN/A0.4 s
Memory usage15.8 GB3.6 GB
Memory %49%11%
HW Fit Score Breakdown
openai/gpt-oss-20b
Speed
50/50
TTFT
0/20
Memory
25/30
yi:6b
Speed
40/50
TTFT
30/20
Memory
30/30
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
yi:6b
Reasoning
11/20
Coding
12/20
Instruction
13/20
Structured
12/15
Math
13/15
Multilingual
6/10
Reasoning: Adequate Coding: Adequate Instruction Following: Adequate Structured Output: Strong Math: Strong Multilingual: Adequate
Run yours and compare
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npm install -g metrillm@latest$
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Or run without installing: npx metrillm@latest