Grok 4.1vsKimi K2.5 Thinking

Grok 4.1 is tied with Kimi K2.5 Thinking on the Podium Score (73.0).Category wins: Grok 4.1 0 — 0 Kimi K2.5 Thinking.Kimi K2.5 Thinking is the cheaper pick ($3/M vs $15/M per 1M output tokens). Grok 4.1 is faster (50 t/s vs 50 t/s).

MetricGrok 4.1Kimi K2.5 Thinking
Podium Score73.073.0
Arena Elo
Intelligence Index
Coding
Math
Reasoning
Agentic
Knowledge
Multimodal
Long-context
Output speed50 t/s50 t/s
Output price$15/M$3/M ▲
Context window128K128K
Scores aggregated from five leaderboards on 2026-08-05. See Methodology. More head-to-heads: Grok 4.1 vs Claude Mythos Preview · Grok 4.1 vs Claude Fable 5 · Grok 4.1 vs Kimi K3 · Grok 4.1 vs Claude Opus 5