Kimi K3.1 ProvsKimi K2.5 Thinking
Kimi K3.1 Pro leads the overall Podium Score by 21.2 points (94.2 vs 73.0).Category wins: Kimi K3.1 Pro 0 — 0 Kimi K2.5 Thinking.Kimi K2.5 Thinking is the cheaper pick ($3/M vs $20/M per 1M output tokens). Kimi K2.5 Thinking is faster (50 t/s vs 45 t/s).
Kimi K3.1 ProDrag slider or hover to compareKimi K2.5 Thinking
Quick VerdictAggregated 2026 Benchmark Analysis
Kimi K3.1 Pro is rated higher overall with a Podium Score of 94.2 (vs 73.0 for Kimi K2.5 Thinking). 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)
API Price / 1M (in · out)
Kimi K3.1 Pro $4/M · $20/M — Kimi K2.5 T $1/M · $3/M
Choose Kimi K3.1 Pro for general-purpose workloads, and Kimi K2.5 Thinking for cost-sensitive workloads.
| Metric | Kimi K3.1 Pro | Kimi K2.5 Thinking |
|---|---|---|
| Podium Score | 94.2 ▲ | 73.0 |
| Arena Elo | 1490 | — |
| Intelligence Index | 68.0 | — |
| Coding | 72.0 | — |
| Math | 95.0 | — |
| Reasoning | 98.0 | — |
| Agentic | 82.0 | — |
| Knowledge | 45.0 | — |
| Multimodal | 96.0 | — |
| Long-context | 100.0 | — |
| Output speed | 45 t/s | 50 t/s ▲ |
| Output price | $20/M | $3/M ▲ |
| Context window | 1000K ▲ | 128K |
Scores aggregated from five independent leaderboards. See Methodology. More head-to-heads: Kimi K3.1 Pro vs Claude Mythos · Kimi K3.1 Pro vs Claude 5.5 Sonnet · Kimi K3.1 Pro vs Eleven Multilingual v3 · Kimi K3.1 Pro vs FLUX.2 Pro