XiaomiMiMo · text · mixture of experts

MiMo-V2.5-Pro

XiaomiMiMo/MiMo-V2.5-Pro

MiMo-V2.5-Pro at Q4_K_M is exactly 622,865,272,992 bytes (580.09 GiB / 622.87 GB) — an effective 4.870 bits per weight, not the nominal 4.

From the file· summed from 17 file(s)From the file· KV per layer
Parameters
1023B
total, not active
Architecture
mimo2
70 layers
Context
1,048,576
native (config.json)
License
mit

Shipped quantizations

exact bytes, summed from published files
QuantSizeExact bytesEffective bpwTensorsPublisher
IQ1_S6 shards197.49 GiB212,048,702,3041.658bartowski
IQ1_M6 shards220.44 GiB236,698,626,8801.851bartowski
IQ2_XXS8 shards256.27 GiB275,164,589,1522.151bartowski
UD-IQ1_M8 shards283.21 GiB304,091,696,6082.377unsloth
IQ2_XS8 shards285.38 GiB306,420,542,5282.396bartowski
IQ2_S8 shards290.79 GiB312,228,392,0322.441bartowski
UD-IQ2_XXS8 shards295.37 GiB317,152,759,2322.480unsloth
UD-IQ2_M8 shards295.48 GiB317,269,937,6002.481unsloth
IQ2_S8 shards297.46 GiB319,392,443,6162.497AesSedai
IQ2_M9 shards321.02 GiB344,692,305,0882.695bartowski
Q2_K10 shards333.73 GiB358,336,064,8322.802bartowski
Q2_K_L10 shards334.58 GiB359,251,520,8322.809bartowski
IQ3_S9 shards350.82 GiB376,695,025,0562.945AesSedai
UD-IQ3_S9 shards351.94 GiB377,893,793,3762.954unsloth
UD-IQ3_XXS10 shards384.32 GiB412,660,379,2643.226unsloth
IQ3_XXS11 shards397.96 GiB427,304,381,8883.341bartowski
Q3_K_S12 shards414.26 GiB444,807,458,2723.478bartowski
UD-Q3_K_M11 shards428.10 GiB459,667,582,8803.594unsloth
IQ3_XS12 shards434.58 GiB466,626,227,6803.648bartowski
Q3_K_M12 shards434.60 GiB466,652,179,9363.648bartowski
Q3_K_L13 shards452.86 GiB486,251,638,4643.802bartowski
IQ3_M13 shards454.54 GiB488,055,713,4723.816bartowski
IQ4_XS11 shards454.99 GiB488,546,446,9443.820AesSedai
UD-IQ4_XS11 shards457.00 GiB490,697,584,4163.836unsloth
UD-IQ4_NL12 shards466.84 GiB501,267,230,7203.919unsloth
IQ4_XS14 shards508.09 GiB545,559,178,9124.265bartowski
IQ4_NL15 shards537.62 GiB577,269,591,9684.513bartowski
Q4_015 shards539.02 GiB578,773,249,9524.525bartowski
UD-Q4_K_S14 shards548.12 GiB588,542,308,5764.601unsloth
Q4_K_S16 shards557.32 GiB598,420,287,5524.679bartowski
Q4_K_M17 shards580.09 GiB622,865,272,9924.870bartowski
Q4_K_M15 shards585.99 GiB629,198,237,9524.919AesSedai
UD-Q4_K_M15 shards586.37 GiB629,612,933,5684.923unsloth
Q4_117 shards596.26 GiB640,231,141,5685.005bartowski
UD-Q5_K_S16 shards664.21 GiB713,189,175,7125.576unsloth
Q5_K_M17 shards704.85 GiB756,826,714,5285.917AesSedai
UD-Q5_K_M17 shards705.94 GiB757,996,925,5365.926unsloth
UD-Q6_K19 shards788.42 GiB846,555,460,4166.619unsloth
Q8_024 shards1012.92 GiB1,087,618,889,0248.503unsloth
BF1643 shards1906.14 GiB2,046,699,256,67216.002unsloth

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 536.05 GiB. The real file is 580.09 GiB, because a quantization is a mixture and some tensors are always kept at higher precision.

Architecture

from config.json
Layers
70
Attention heads
128
KV heads
8
Head dim
192
Hidden size
6144
Vocab
152,576
Sliding window
128
SWA period
MLA
no
Experts
384
Experts per token
8
use_sliding_window

Questions people ask

How much VRAM does MiMo-V2.5-Pro need?
Q4_K_M is exactly 622,865,272,992 bytes (580.09 GiB) in weights. Add the KV cache, which depends on your context length, plus roughly half a gigabyte of runtime overhead.
Is MiMo-V2.5-Pro a mixture-of-experts model?
Yes — 384 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-V2.5-Pro 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.