Claude Mythos PreviewvsSeed 2.0 Pro
Claude Mythos Preview leads the overall Podium Score by 57.4 points (97.4 vs 40.0).Category wins: Claude Mythos Preview 3 — 0 Seed 2.0 Pro.Seed 2.0 Pro is the cheaper pick ($3/M vs $15/M per 1M output tokens). Claude Mythos Preview is faster (80 t/s vs 40 t/s).
Key VerdictAggregated 2026 Benchmark Analysis
Claude Mythos Preview is rated higher overall with a Podium Score of 97.4 (vs 40.0 for Seed 2.0 Pro). In head-to-head domain evaluations, Claude Mythos Preview outperforms in 3 of 7 benchmark categories.
Coding & Engineering
Claude Mythos Preview (80.9)
Inference Speed
Claude Mythos Preview (80 t/s)
Cost Efficiency
Seed 2.0 Pro ($3/M/M)
| Metric | Claude Mythos Preview | Seed 2.0 Pro |
|---|---|---|
| Podium Score | 97.4 ▲ | 40.0 |
| Arena Elo | — | 1456 |
| Intelligence Index | — | — |
| Coding | 80.9 ▲ | 9.9 |
| Math | 100.0 ▲ | 47.2 |
| Reasoning | 98.8 ▲ | 34.2 |
| Agentic | — | — |
| Knowledge | 100.0 | — |
| Multimodal | 100.0 | — |
| Long-context | — | 13.8 |
| Output speed | 80 t/s ▲ | 40 t/s |
| Output price | $15/M | $3/M ▲ |
| Context window | — | 131K |
Scores aggregated from five independent leaderboards. See Methodology. More head-to-heads: Claude Mythos vs Claude Fable 5 · Claude Mythos vs Kimi K3 · Claude Mythos vs Claude Opus 5 · Claude Mythos vs GPT-5.6 Sol