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gpt-oss-20b-MXFP4-Q8

M4 (10c) · 32 GB · 4bit · 2026-04-18

Performance

1k

tokens

377.5

PP tok/s

35.5

TG tok/s

2712

TTFT (ms)

11.7

Peak mem (GB)

Hardware

Chip M4 (10c)

Memory 32 GB

GPU Cores 10

Software

oMLX v0.3.6

macOS macOS 26.3.1

Context 1,024

Performance by Context Length

Context	PP tok/s	TG tok/s	Peak Mem
1k	377.5	35.5	11.7 GB	current
4k	402.8	33.1	11.8 GB	view
8k	391.7	29.8	11.9 GB	view