XiaomiMiMo · text · mixture of experts

MiMo-V2-Flash

XiaomiMiMo/MiMo-V2-Flash

MiMo-V2-Flash at Q4_K_M is exactly 186,798,293,696 bytes (173.97 GiB / 186.80 GB) — an effective 4.824 bits per weight, not the nominal 4.

From the file· summed from 4 file(s)From the file· KV per layer
Parameters
310B
total, not active
Architecture
mimo2
48 layers
Context
262,144
native (config.json)
License
mit

Shipped quantizations

exact bytes, summed from published files
QuantSizeExact bytesEffective bpwTensorsPublisher
I1-IQ1_S58.20 GiB62,496,645,2161.614mradermacher
IQ1_S2 shards58.91 GiB63,254,069,1201.633bartowski
IQ1_M2 shards61.31 GiB65,827,274,6561.700bartowski
I1-IQ1_M64.64 GiB69,407,932,5121.792mradermacher
IQ2_XXS2 shards68.47 GiB73,521,725,3441.899bartowski
UD-TQ1_072.36 GiB77,692,674,3042.006unsloth
I1-IQ2_XXS75.37 GiB80,926,744,6722.090mradermacher
IQ2_XS3 shards79.09 GiB84,921,843,7762.193bartowski
IQ2_S3 shards79.34 GiB85,186,641,9842.200bartowski
UD-IQ1_S2 shards81.23 GiB87,222,133,1842.252unsloth
I1-IQ2_XS84.00 GiB90,192,126,0482.329mradermacher
I1-IQ2_S85.29 GiB91,579,424,8642.365mradermacher
UD-IQ1_M2 shards87.36 GiB93,800,366,5602.422unsloth
IQ2_M3 shards90.09 GiB96,737,755,1682.498bartowski
I1-IQ2_M93.87 GiB100,794,474,5922.603mradermacher
UD-IQ2_XXS3 shards94.58 GiB101,554,291,2962.623unsloth
I1-Q2_K_S97.22 GiB104,389,165,1522.696mradermacher
UD-IQ2_M3 shards99.33 GiB106,654,564,9602.754unsloth
Q2_K3 shards100.27 GiB107,659,853,8562.780bartowski
Q2_K_L3 shards100.83 GiB108,270,157,8562.796bartowski
I1-Q2_K104.57 GiB112,278,126,6882.900mradermacher
Q2_K3 shards104.57 GiB112,278,127,2002.900unsloth
Q2_K_L3 shards104.70 GiB112,424,600,1282.903unsloth
I1-IQ3_XXS110.41 GiB118,550,012,0003.062mradermacher
IQ3_XXS4 shards113.14 GiB121,483,624,5763.137bartowski
I1-IQ3_XS117.12 GiB125,756,317,7923.248mradermacher
IQ3_XS4 shards117.68 GiB126,357,569,6963.263bartowski
UD-IQ3_XXS3 shards118.70 GiB127,455,461,9523.292unsloth
I1-Q3_K_S123.96 GiB133,105,918,0483.437mradermacher
Q3_K_S3 shards123.96 GiB133,105,918,5283.437unsloth
I1-IQ3_S123.99 GiB133,130,149,9843.438mradermacher
Q3_K_S4 shards124.51 GiB133,694,341,2483.453bartowski
I1-IQ3_M125.52 GiB134,779,035,7443.481mradermacher
IQ3_M4 shards130.65 GiB140,287,377,5363.623bartowski
Q3_K_M4 shards130.66 GiB140,296,552,5763.623bartowski
Q3_K_L4 shards136.05 GiB146,077,352,0963.772bartowski
I1-Q3_K_M137.19 GiB147,304,013,9203.804mradermacher
Q3_K_M3 shards137.19 GiB147,304,014,4003.804unsloth
I1-Q3_K_L148.65 GiB159,606,956,1284.122mradermacher
I1-IQ4_XS153.13 GiB164,426,252,3844.246mradermacher

KV cache by context

unresolved

This model declares a 128-token sliding window, but we could not establish which layers use it. Its architecture publishes the layout as a per-layer array inside the model file rather than as a period in config.json, and we have not yet ingested that array.

A flat context × layers × heads figure would be substantially too high, so we are not showing one. This is tracked as a known gap rather than filled with a guess.

Compare with

same modality, comparable size

Will it run on your card?

full quant x context sweep

Why other calculators give a different number

A parameters × bits ÷ 8 estimate puts Q4_K_M at roughly 162.29 GiB. The real file is 173.97 GiB, because a quantization is a mixture and some tensors are always kept at higher precision.

Architecture

from config.json
Layers
48
Attention heads
64
KV heads
4
Head dim
192
Hidden size
4096
Vocab
152,576
Sliding window
128
SWA period
MLA
no
Experts
256
Experts per token
8
use_sliding_window

Questions people ask

How much VRAM does MiMo-V2-Flash need?
Q4_K_M is exactly 186,798,293,696 bytes (173.97 GiB) in weights. Add the KV cache, which depends on your context length, plus roughly half a gigabyte of runtime overhead.
Is MiMo-V2-Flash a mixture-of-experts model?
Yes — 256 experts, 8 routed per token. Every expert must be resident, but only the routed ones are read per token, which is why its memory requirement and its speed behave very differently.
Which quantization of MiMo-V2-Flash should I use?
Q4_K_M is the usual default. Pick the largest quantization that fits your card at the context you actually need — the table above gives exact sizes for every one published.