Claude Sonnet 4 5 20250929 Thinking 32kvsKimi K2.5 Thinking

Claude Sonnet 4 5 20250929 Thinking 32k is tied with Kimi K2.5 Thinking on the Podium Score (73.0).Category wins: Claude Sonnet 4 5 20250929 Thinking 32k 0 — 0 Kimi K2.5 Thinking.Kimi K2.5 Thinking is the cheaper pick ($3/M vs $15/M per 1M output tokens). Claude Sonnet 4 5 20250929 Thinking 32k is faster (50 t/s vs 50 t/s).

MetricClaude Sonnet 4 5 20250929 Thinking 32kKimi 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