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gpt-oss-20b-MXFP4-Q8

M4 Max (40c) · 128 GB · 4bit · 2026-05-02
Performance
1k
tokens
965.7
PP tok/s
111.1
TG tok/s
1060
TTFT (ms)
11.8
Peak mem (GB)
Hardware
Chip M4 Max (40c)
Memory 128 GB
GPU Cores 40
Software
oMLX v0.3.8
macOS macOS 26.4.1
Context 1,024
Performance by Context Length
Context PP tok/s TG tok/s Peak Mem
1k 965.7 111.1 11.8 GB current
4k 1,448 105.2 11.8 GB view
Batching Results
Batch Size TG tok/s Speedup
111.1 1.00×
154.2 1.39×
182.5 1.64×