Claude Mythos PreviewvsFLUX.2 Klein 4B
Claude Mythos Preview leads the overall Podium Score by 10.9 points (97.4 vs 86.5).Category wins: Claude Mythos Preview 5 — 0 FLUX.2 Klein 4B.FLUX.2 Klein 4B is the cheaper pick ($0.01/M vs $15/M per 1M output tokens). FLUX.2 Klein 4B is faster (90 t/s vs 80 t/s).
Claude Mythos PreviewDrag slider or hover to compareFLUX.2 Klein 4B
Quick VerdictAggregated 2026 Benchmark Analysis
Claude Mythos Preview is rated higher overall with a Podium Score of 97.4 (vs 86.5 for FLUX.2 Klein 4B). 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
FLUX.2 Klein 4B (90 t/s)
Cost Efficiency
FLUX.2 Klein 4B ($0.01/M)
API Price / 1M (in · out)
Claude Mythos $3/M · $15/M — FLUX.2 Klein 4B $0.01/M · $0.01/M
Choose Claude Mythos Preview for math and quantitative work, and FLUX.2 Klein 4B for cost-sensitive workloads.
| Metric | Claude Mythos Preview | FLUX.2 Klein 4B |
|---|---|---|
| Podium Score | 97.4 ▲ | 86.5 |
| Arena Elo | — | 1380 |
| Intelligence Index | — | 87.0 |
| Coding | 80.9 ▲ | 0.0 |
| Math | 100.0 ▲ | 0.0 |
| Reasoning | 98.8 ▲ | 25.0 |
| Agentic | — | 18.0 |
| Knowledge | 100.0 ▲ | 42.0 |
| Multimodal | 100.0 ▲ | 90.0 |
| Long-context | — | 35.0 |
| Output speed | 80 t/s | 90 t/s ▲ |
| Output price | $15/M | $0.01/M ▲ |
| Context window | 1000K ▲ | 32K |
Scores aggregated from five independent leaderboards. See Methodology. More head-to-heads: Claude Mythos vs Claude 5.5 Sonnet · Claude Mythos vs Kimi K3.1 Pro · Claude Mythos vs Eleven Multilingual v3 · Claude Mythos vs FLUX.2 Pro