Claude Mythos PreviewvsLongcat Flash Chat 2602 Exp

Claude Mythos Preview leads the overall Podium Score by 25.4 points (97.4 vs 72.0).Category wins: Claude Mythos Preview 0 — 0 Longcat Flash Chat 2602 Exp.Longcat Flash Chat 2602 Exp is the cheaper pick ($3/M vs $15/M per 1M output tokens). Claude Mythos Preview is faster (80 t/s vs 50 t/s).

Key VerdictAggregated 2026 Benchmark Analysis

Claude Mythos Preview is rated higher overall with a Podium Score of 97.4 (vs 72.0 for Longcat Flash Chat 2602 Exp). Both models show closely matched capabilities across domain benchmarks.

Coding & Engineering
Comparable
Inference Speed
Claude Mythos Preview (80 t/s)
Cost Efficiency
Longcat Flash Chat 2602 Exp ($3/M/M)
MetricClaude Mythos PreviewLongcat Flash Chat 2602 Exp
Podium Score97.4 ▲72.0
Arena Elo
Intelligence Index
Coding80.9
Math100.0
Reasoning98.8
Agentic
Knowledge100.0
Multimodal100.0
Long-context
Output speed80 t/s ▲50 t/s
Output price$15/M$3/M ▲
Context window128K
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
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