Xiaomi310B/15B active~188 GB VRAM at Q4_K_M

MiMo-V2.5 310B — VRAM, speed & local setup

Written by Jakub Rusinowski · Last updated

310B total, 15B active per token, MIT, 1M context. Every one of the 310B must be resident — 188 GB at Q4_K_M, so a 192 GB Mac Studio or a small multi-GPU box — while per-token bandwidth is that of a 15B model. The standard variant rather than the flagship, and the cheaper of the two to serve.

MiMo-V2.5 310B needs about 188 GB of VRAM at Q4_K_M — quantized weights plus framework overhead, before any KV cache. On Apple Silicon that figure comes out of unified memory.

Logic90
Creative87
Coding90

VRAM and speed by quantization

Quoted against NVIDIA RTX 4090 (24 GB). Weights plus overhead only: this model's architecture is unpublished, so no KV cache is added.

QuantVRAMSpeed (est.)Fit
Q2_K
2.63 bpw
102.7 GB—Too big
Q3_K_M
3.41 bpw
132.9 GB—Too big
Q4_K_M
4.83 bpw
188 GB—Too big
Q5_K_M
5.67 bpw
220.5 GB—Too big
Q6_K
6.56 bpw
255 GB—Too big
Q8_0
8.50 bpw
330.2 GB—Too big
F16
16.00 bpw
620.8 GB—Too big

Black marker = usable memory on the NVIDIA RTX 4090 (24 GB). Estimates from the memory-bandwidth roofline on the methodology page. MiMo-V2.5 310B VRAM calculator →

Get MiMo-V2.5 310B running

The cheapest catalogued GPU that runs MiMo-V2.5 310B is the Apple M3 Ultra (512 GB).

Buy this hardware Apple Mac Studio M3 Ultra — 512 GB VRAM · 60 W board powerDeploy in the cloud now RunPod

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Apple Mac Studio M3 Ultra
512 GB VRAM · 60 W board power
2026 prices are volatile — check the current listing.

How to run MiMo-V2.5 310B

Install Ollama, then run:

ollama run mimo-v2-5
Weights on Hugging Face: XiaomiMiMo/MiMo-V2.5 ↗

Specifications

Verified — Checked against the primary source — the model card or the vendor spec page — and corroborated by a second independent source.

Parameters
310 Billion (15B active)
Context window
1,000,000
Architecture
Mixture-of-Experts
Provider
Xiaomi
Licence
MIT
Practical deployment
Workstation (large unified memory or pro GPU)
Specified at
Q4_K_M
System RAM
256 GB
Record updated
2026-09-06
LicenceMITCommercial use permitted

Commercial use permitted. No usage restrictions beyond attribution.

Quality and use cases

Scores as published by the model’s authors or an independent evaluator — quality, not throughput, and not measured by us.

Best forlong contextagentic tasksenterprisecost efficient

Can I run MiMo-V2.5 310B on my GPU?

Other MiMo-V2.5 sizes

MiMo-V2.5 310B — frequently asked questions

How much VRAM does MiMo-V2.5 310B need?

About 188 GB at Q4_K_M — quantized weights plus framework overhead, before any KV cache. The cache grows with context length and is added on top; the table above folds it in. Apple Silicon counts unified memory toward the same figure.

Does MiMo-V2.5 310B run on an RTX 4090 (24 GB)?

No. MiMo-V2.5 310B needs about 188 GB at Q4_K_M, more than a single RTX 4090's 24 GB. It needs a larger card, several GPUs, or Apple Silicon with enough unified memory — or it runs with part of the weights offloaded to system RAM, which is much slower.

How do I run MiMo-V2.5 310B locally?

Install Ollama and run `ollama run mimo-v2-5`. That pulls the weights and starts a local OpenAI-compatible endpoint; after the download nothing leaves the machine.

What other sizes does MiMo-V2.5 come in?

MiMo-V2.5 310B (188 GB), MiMo-V2.5-Pro 1T (605 GB). Every size shares the family's training and licence; the larger ones score higher and need proportionally more memory.