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Kimi K2.5 (Thinking) vs Kimi K2.6

Kimi K2.6 is ahead on Arena (1461 vs 1450): in a blind vote people prefer it about 52% of the time.

Kimi K2.5 (Thinking)1450Arena chat · #80 of 419
Kimi K2.61461Arena chat · #60 of 419

Arena scores by category

CategoryKimi K2.5 (Thinking)Kimi K2.6Ahead
Chat14501461Kimi K2.6
Coding14361509Kimi K2.6
Vision12521265Kimi K2.6
Documents14361450Kimi K2.6

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)Kimi K2.6
Made bymoonshotmoonshot
Size1026.9 B (32.2 B active)1026.9 B (32.2 B active)
4-bit download624 GB624 GB
Use it freedownload and run at home · Modified MIT licensedownload and run at home · Modified MIT license

Speed at home

HardwareKimi K2.5 (Thinking)Kimi K2.6
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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