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Kimi K2.5 (Thinking) vs MiMo-V2.6-Flash

Kimi K2.5 (Thinking) and MiMo-V2.6-Flash are about even on Arena (1450 vs 1448): in a blind vote each wins about half the time.

Kimi K2.5 (Thinking)1450Arena chat · #80 of 419
MiMo-V2.6-Flash1448Arena chat · #85 of 419

Arena scores by category

CategoryKimi K2.5 (Thinking)MiMo-V2.6-FlashAhead
Chat14501448about even
Coding14361637MiMo-V2.6-Flash
Vision12521245about even

Scores from blind human votes on Arena. A gap under 10 points is too small to call.

Size and where to use them free

Kimi K2.5 (Thinking)MiMo-V2.6-Flash
Made bymoonshotxiaomi
Size1026.9 B (32.2 B active)310.8 B (16.8 B active)
4-bit download624 GB190 GB
Use it freedownload and run at home · Modified MIT licensedownload and run at home · MIT license

Speed at home

HardwareKimi K2.5 (Thinking)MiMo-V2.6-Flash
RTX 3090does not fitdoes not fit
RTX 4090does not fitdoes not fit
RTX 5090does not fitdoes not fit
RX 7900 XTXdoes not fitdoes not fit
Mac M4 Max 128 GBdoes not fitdoes not fit
Ryzen AI Max+ 395 128 GBdoes not fitdoes not fit

Estimates at 4-bit with an 8K context, 64 GB of system RAM for offload, calibrated on 44 real llama.cpp tests.

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