Kimi K3vsClaude Opus 5

Kimi K3 leads the overall Podium Score by 1.9 points (83.3 vs 81.4).Category wins: Kimi K3 1 — 2 Claude Opus 5.Kimi K3 is the cheaper pick ($15/M vs $25/M per 1M output tokens). Claude Opus 5 is faster (60 t/s vs 37 t/s).

MetricKimi K3Claude Opus 5
Podium Score83.3 ▲81.4
Arena Elo14851492 ▲
Intelligence Index57.061.0 ▲
Coding61.570.4 ▲
Math70.9
Reasoning86.5 ▲82.3
Agentic100.0
Knowledge19.737.1 ▲
Multimodal83.5
Long-context99.299.2
Output speed37 t/s60 t/s ▲
Output price$15/M ▲$25/M
Context window1000K1000K
Scores aggregated from five leaderboards on 2026-08-05. See Methodology. More head-to-heads: Kimi K3 vs Claude Mythos Preview · Kimi K3 vs Claude Fable 5 · Kimi K3 vs GPT-5.6 Sol · Kimi K3 vs Qwen3.8 Max