Apple M2 Ultra~119 tok/s (Q4)

WeiboAI/VibeThinker-1.5B speed on Apple M2 Ultra

Quantization-specific throughput and VRAM requirements for WeiboAI/VibeThinker-1.5B running on Apple M2 Ultra.

Speed Snapshot

Topline estimate from compatibility data

ModelWeiboAI/VibeThinker-1.5B

GPUApple M2 Ultra

Q4 speed119 tok/s

Q4 VRAM required1GB

Data Source

Calculation and benchmark status

Speed values come from the compatibility dataset (`estimatedTokensPerSec`) and are sorted by quantization.

For full verdict logic and alternate GPUs, see the canonical compatibility page.

Quantization Speed Table

Quantization	VRAM needed	VRAM available	Speed	Verdict
Q4	1GB	192GB	119 tok/s	✅ Fits
Q8	2GB	192GB	98 tok/s	✅ Fits
FP16	4GB	192GB	48 tok/s	✅ Fits