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gpt-oss-120b-MXFP4-Q8

M4 Max (40c) · 128 GB · 4bit · 2026-04-04

Performance

1k

tokens

785.4

PP tok/s

73.1

TG tok/s

1304

TTFT (ms)

59.5

Peak mem (GB)

Hardware

Chip M4 Max (40c)

Memory 128 GB

GPU Cores 40

Software

oMLX v0.3.2

macOS macOS 26.4

Context 1,024

Performance by Context Length

Context	PP tok/s	TG tok/s	Peak Mem
1k	785.4	73.1	59.5 GB	current
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	view