Claude Mythos PreviewvsMuse Spark 1.1
Claude Mythos Preview leads the overall Podium Score by 27.5 points (97.4 vs 69.9).Category wins: Claude Mythos Preview 3 — 0 Muse Spark 1.1.Muse Spark 1.1 is the cheaper pick ($4.25/M vs $15/M per 1M output tokens). Muse Spark 1.1 is faster (208 t/s vs 80 t/s).
Key VerdictAggregated 2026 Benchmark Analysis
Claude Mythos Preview is rated higher overall with a Podium Score of 97.4 (vs 69.9 for Muse Spark 1.1). 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
Muse Spark 1.1 (208 t/s)
Cost Efficiency
Muse Spark 1.1 ($4.25/M/M)
| Metric | Claude Mythos Preview | Muse Spark 1.1 |
|---|---|---|
| Podium Score | 97.4 ▲ | 69.9 |
| Arena Elo | — | 1490 |
| Intelligence Index | — | 51.0 |
| Coding | 80.9 ▲ | 64.4 |
| Math | 100.0 | — |
| Reasoning | 98.8 ▲ | 62.7 |
| Agentic | — | — |
| Knowledge | 100.0 ▲ | 28.1 |
| Multimodal | 100.0 | — |
| Long-context | — | 99.2 |
| Output speed | 80 t/s | 208 t/s ▲ |
| Output price | $15/M | $4.25/M ▲ |
| Context window | — | 1000K |
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