Kimi K3 vs Opus 5.5

Kimi K3 vs Opus 5.5 compared on intelligence, speed, and cost. Try both models on Zo, the always-on AI computer that does real work for you.

Intelligence

Tie
vs

Speed

Opus 5.5 is faster
Standard
vs

Cost

Tie
vs

How to read this

Intelligence comes from SWE-bench Verified, the coding benchmark used by the model picker. Speed means the model is fast enough for the picker threshold. Cost shows the relative tier across Zo models: green is cheaper, amber is pricier.

Model details

1M tokens
Context
1M tokens
Knowledge
Jun 2026
Jul 2026
Released
Sep 2026
$3.00/1M
Input
$4.00/1M
$15.00/1M
Output
$20.00/1M

Both Kimi K3 and Opus 5.5 are available on Zo Computer. Try them both to see which one works best for your use case.