openai/gpt-oss-20b
LM-STUDIO MLXgpt_oss · 20B · MXFP4
Oct 20, 2026 · Apple M1 Pro
hf.co/unsloth/gpt-oss-20b-GGUF:Q4_K_M
OLLAMA GGUFgpt-oss · 20.9B · unknown
Aug 24, 2026 · Apple M1 Pro
Global Score
83 vs 86
Hardware Fit
75 vs 75
Quality Score
87 vs 90
Hardware
openai/gpt-oss-20b hf.co/unsloth/gpt-…
MachineMacBook ProMacBook Pro
CPUApple M1 ProApple M1 Pro
Cores1010
RAM32 GB16 GB
GPUApple M1 ProApple M1 Pro
OSmacOS 15.6.1macOS 26.6.2
Archarm64arm64
Power Modebalancedbalanced
Performance
openai/gpt-oss-20b hf.co/unsloth/gpt-…
Tokens/sec43.235.9
First chunk46 ms1082 ms
TTFT30.0 s5.2 s
Load timeN/A8.2 s
Memory usage15.8 GB11.1 GB
Memory %49%69%
HW Fit Score Breakdown
openai/gpt-oss-20b
Speed
50/50
TTFT
0/20
Memory
25/30
hf.co/unsloth/gpt-oss-2…
Speed
50/50
TTFT
10/20
Memory
15/30
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
hf.co/unsloth/gpt-oss-2…
Reasoning
19/20
Coding
17/20
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
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