Kimi K2.5 ThinkingvsClaude Opus 4 20250514 Thinking 16k

Kimi K2.5 Thinking leads the overall Podium Score by 2.0 points (73.0 vs 71.0).Category wins: Kimi K2.5 Thinking 0 — 0 Claude Opus 4 20250514 Thinking 16k.Kimi K2.5 Thinking is the cheaper pick ($3/M vs $15/M per 1M output tokens). Kimi K2.5 Thinking is faster (50 t/s vs 50 t/s).

Key VerdictAggregated 2026 Benchmark Analysis

Kimi K2.5 Thinking is rated higher overall with a Podium Score of 73.0 (vs 71.0 for Claude Opus 4 20250514 Thinking 16k). Both models show closely matched capabilities across domain benchmarks.

Coding & Engineering
Comparable
Inference Speed
Kimi K2.5 Thinking (50 t/s)
Cost Efficiency
Kimi K2.5 Thinking ($3/M/M)
MetricKimi K2.5 ThinkingClaude Opus 4 20250514 Thinking 16k
Podium Score73.0 ▲71.0
Arena Elo
Intelligence Index
Coding
Math
Reasoning
Agentic
Knowledge
Multimodal
Long-context
Output speed50 t/s50 t/s
Output price$3/M ▲$15/M
Context window128K128K
Scores aggregated from five independent leaderboards. See Methodology. More head-to-heads: Kimi K2.5 T vs Claude Mythos · Kimi K2.5 T vs Claude Fable 5 · Kimi K2.5 T vs Kimi K3 · Kimi K2.5 T vs Claude Opus 5
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