Can I Run MiMo-V2.5 on Mac Studio (M2 Ultra, 192 GB)?

Written by Jakub Rusinowski · Last updated September 6, 2026

Yes, but it is tight

Yes, but it is tight — MiMo-V2.5 310B at Q3_K_M needs about 136.8 GB of the 144 GB usable on Mac Studio (M2 Ultra, 192 GB), leaving only ~7.2 GB before the runtime starts swapping. Expect ~45.4 tok/s (estimated), with room for about 16,384 tokens of context.

Confidence: low · Recommended quantization: Q3_K_M · Estimated speed: ~45.4 tok/s

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Mac Studio (M2 Ultra, 192 GB) — what it gives a model

Usable memory for models	144 GB
Memory bandwidth	800 GB/s
Form factor	Desktop
Operating system	macOS
Memory upgradeable	No — soldered

MiMo-V2.5 on Mac Studio (M2 Ultra, 192 GB): memory by quantization

Quant	Memory needed	Fits 144 GB?	Max context	Est. speed	Download
F16	624.7 GB	✗ No	—	—	620 GB
Q8_0	334.1 GB	✗ No	—	—	329.4 GB
Q6_K	258.9 GB	✗ No	—	—	254.2 GB
Q5_K_M	224.4 GB	✗ No	—	—	219.7 GB
Q4_K_M	191.9 GB	✗ No	—	—	187.2 GB
Q3_K_M	136.8 GB	✓ Yes	16K	~45.4 tok/s	132.1 GB
Q2_K	106.6 GB	✓ Yes	64K	~53.5 tok/s	101.9 GB

Superseded model. MiMo-V2.5 has been superseded by MiMo-V2.6. This page is kept for reference; the newer family is a better starting point. View MiMo-V2.6 Distill 9B →

Which MiMo-V2.5 sizes fit

Variant	Needs at Q4_K_M	Fits?	Est. speed
MiMo-V2.5-Pro 1T	610.3 GB	✗ Too large	—
MiMo-V2.5 310B	191.9 GB	✗ Too large	—

What to watch out for

Q3_K_M is the only quantization that fits, and it is a heavily degraded one — expect noticeably worse output than the same model at Q4_K_M. A smaller model at Q4 is usually the better trade.
2 larger variants of MiMo-V2.5 do not fit and would need CPU offload or different hardware.
This model does not publish its full attention configuration, so the KV-cache share of these figures is inferred from its parameter count rather than computed exactly.
Memory on this machine is not upgradeable, so the configuration you buy is the ceiling for every model you will ever run on it.

Mac Studio M2 Ultra 192 GB limitations

Superseded by the M3 Ultra, which is why it is often the better used buy for large-model work.
Memory is soldered; the configuration chosen at purchase is permanent.

Recommended setup

Ollama or LM Studio (Metal) — MLX for the fastest Apple-native throughput

How these numbers are calculated

Memory need = quantized weights + KV cache at 8,192 tokens (f16) + 0.8 GB runtime overhead.
192 GB unified memory at 800 GB/s, shared between CPU and GPU.
macOS reserves a share of unified memory for the system, so not all of it is available to a model.
Throughput is a memory-bandwidth roofline estimate, not a measurement. It is labelled "estimated" everywhere it appears.
KV cache is inferred from the parameter count because this model does not publish its full attention configuration.

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