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DeepSeek V4.1 Flash 1017 vs Kimi K3

DeepSeek V4.1 Flash 1017DeepSeek
Kimi K3Moonshot AI
Our take

DeepSeek V4.1 Flash 1017 and Kimi K3 trade wins evenly on our provisional scores, but DeepSeek V4.1 Flash 1017 is 11.4× cheaper for everyday text work. Pick DeepSeek V4.1 Flash 1017 when quality matters most, DeepSeek V4.1 Flash 1017 at volume.

Overall–65
Coding7474
Writing–69
Support–73
Value–52
Input / 1M$0.30Best$3.00
Output / 1M$1.20Best$15.00
Blended / 1M$0.53Best$6.00
Context window1M1M
Open weightsYesYes
Released17 Oct 202616 Jul 2026

Your monthly bill

50k
DeepSeek V4.1 Flash 1017$105Cheapest
Kimi K3$1.2k
List prices, a quarter of the tokens as output. Scores are provisional, from Arena and Epoch AI.