Claude Mythos PreviewvsKimi K3.1 Pro
Claude Mythos Preview leads the overall Podium Score by 3.2 points (97.4 vs 94.2).Category wins: Claude Mythos Preview 5 — 0 Kimi K3.1 Pro.Claude Mythos Preview is the cheaper pick ($15/M vs $20/M per 1M output tokens). Claude Mythos Preview is faster (80 t/s vs 45 t/s).
Claude Mythos PreviewDrag slider or hover to compareKimi K3.1 Pro
Quick VerdictAggregated 2026 Benchmark Analysis
Claude Mythos Preview is rated higher overall with a Podium Score of 97.4 (vs 94.2 for Kimi K3.1 Pro). In head-to-head domain evaluations, Claude Mythos Preview outperforms in 5 of 7 benchmark categories.
Coding & Engineering
Claude Mythos Preview (80.9)
Inference Speed
Claude Mythos Preview (80 t/s)
Cost Efficiency
Claude Mythos Preview ($15/M)
API Price / 1M (in · out)
Claude Mythos $3/M · $15/M — Kimi K3.1 Pro $4/M · $20/M
Choose Claude Mythos Preview for math and quantitative work, and Kimi K3.1 Pro for general-purpose workloads.
| Metric | Claude Mythos Preview | Kimi K3.1 Pro |
|---|---|---|
| Podium Score | 97.4 ▲ | 94.2 |
| Arena Elo | — | 1490 |
| Intelligence Index | — | 68.0 |
| Coding | 80.9 ▲ | 72.0 |
| Math | 100.0 ▲ | 95.0 |
| Reasoning | 98.8 ▲ | 98.0 |
| Agentic | — | 82.0 |
| Knowledge | 100.0 ▲ | 45.0 |
| Multimodal | 100.0 ▲ | 96.0 |
| Long-context | — | 100.0 |
| Output speed | 80 t/s ▲ | 45 t/s |
| Output price | $15/M ▲ | $20/M |
| Context window | 1000K | 1000K |
Scores aggregated from five independent leaderboards. See Methodology. More head-to-heads: Claude Mythos vs Claude 5.5 Sonnet · Claude Mythos vs Eleven Multilingual v3 · Claude Mythos vs FLUX.2 Pro · Claude Mythos vs Gemini 4 Argon