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Claude Haiku 5.5 vs Kimi K3

Claude Haiku 5.5Anthropic
Kimi K3Moonshot AI
Our take

Kimi K3 wins 4 of 4 categories, but Claude Haiku 5.5 is 30.0× cheaper for everyday text work. Pick Kimi K3 when quality matters most, Claude Haiku 5.5 at volume.

Overall4465Best
Coding5274Best
Writing2469Best
Support3473Best
Value5052Best
Input / 1M$0.10Best$3.00
Output / 1M$0.50Best$15.00
Blended / 1M$0.20Best$6.00
Context window1M1MBest
Open weightsNoYes
Released7 Oct 202616 Jul 2026

Your monthly bill

50k
Claude Haiku 5.5$40.00Cheapest
Kimi K3$1.2k
List prices, a quarter of the tokens as output. Scores are provisional, from Arena and Epoch AI.