Moonshot’s Kimi K3 tops DesignArena with a 1408 Elo and unusually long reasoning traces

cephaloform · x · 2026-07-24

Moonshot’s Kimi K3 is drawing attention after topping DesignArena’s single-shot Frontend Arena with an Elo of 1408, according to the cited article.

The post highlights a massive increase in consumed thinking tokens during coding-style reasoning.
It claims Kimi K3 uses about 10× more thinking tokens for coding than any other model observed.
The model is also said to have effectively memorized Unsplash image IDs, enabling stronger image reasoning without a web search tool call.
The attached visual shows a very long thinking trace broken into steps like planning, choosing images, deciding page sections, animation design, CSS design, header design, checkout design, and micro-interaction design.
The result reportedly helps generate websites with higher relevance and accuracy on DesignArena than previously seen.

More from Models