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gpt-oss-120b-MXFP4-Q8

M4 Max (40c) · 128 GB · 4bit · 2026-04-04
Performance
64k
tokens
521.5
PP tok/s
22.1
TG tok/s
125675
TTFT (ms)
61.7
Peak mem (GB)
Hardware
Chip M4 Max (40c)
Memory 128 GB
GPU Cores 40
Software
oMLX v0.3.2
macOS macOS 26.4
Context 65,536
Performance by Context Length
Context PP tok/s TG tok/s Peak Mem
1k 785.4 73.1 59.5 GB view
4k 852.0 67.9 59.6 GB view
8k 825.1 62.2 59.8 GB view
16k 734.3 48.8 60.0 GB view
32k 627.7 34.8 60.6 GB view
64k 521.5 22.1 61.7 GB current