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gpt-oss-120b-MXFP4-Q8

M2 Ultra (76c) · 128 GB · 4bit · 2026-03-08

Performance

16k

tokens

361.6

PP tok/s

38.4

TG tok/s

45306

TTFT (ms)

59.8

Peak mem (GB)

Hardware

Chip M2 Ultra (76c)

Memory 128 GB

GPU Cores 76

Software

oMLX v0.2.6

macOS macOS 26.3

Context 16,384

Performance by Context Length

Context	PP tok/s	TG tok/s	Peak Mem
8k	365.9	43.7	59.5 GB	view
16k	361.6	38.4	59.8 GB	current