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MiniMax-M3.1-Flash vs Kimi K3

MiniMax-M3.1-FlashMiniMax
Kimi K3Moonshot AI
Our take

Kimi K3 wins 1 of 1 categories, but MiniMax-M3.1-Flash is 22.9× cheaper for everyday text work. Pick Kimi K3 when quality matters most, MiniMax-M3.1-Flash at volume.

Overall–65
Coding6074Best
Writing–69
Support–73
Value–52
Input / 1M$0.15Best$3.00
Output / 1M$0.60Best$15.00
Blended / 1M$0.26Best$6.00
Context window1M1MBest
Open weightsNoYes
Released19 Oct 202616 Jul 2026

Your monthly bill

50k
MiniMax-M3.1-Flash$52.50Cheapest
Kimi K3$1.2k
List prices, a quarter of the tokens as output. Scores are provisional, from Arena and Epoch AI.