Claude 5.5 SonnetvsClaude Fable 5.1 (XHigh)
Claude 5.5 Sonnet leads the overall Podium Score by 5.8 points (94.8 vs 89.0).Category wins: Claude 5.5 Sonnet 4 — 0 Claude Fable 5.1 (XHigh). Claude 5.5 Sonnet is faster (94 t/s vs 78 t/s).
Claude 5.5 SonnetDrag slider or hover to compareClaude Fable 5.1 (XHigh)
Quick VerdictAggregated 2026 Benchmark Analysis
Claude 5.5 Sonnet is rated higher overall with a Podium Score of 94.8 (vs 89.0 for Claude Fable 5.1 (XHigh)). In head-to-head domain evaluations, Claude 5.5 Sonnet outperforms in 4 of 7 benchmark categories.
Coding & Engineering
Claude 5.5 Sonnet (91.5)
Inference Speed
Claude 5.5 Sonnet (94 t/s)
Cost Efficiency
Comparable
API Price / 1M (in · out)
Claude 5.5 Sonnet $3/M · $15/M — Claude Fable 5.1 (XHigh) $3/M · $15/M
Choose Claude 5.5 Sonnet for vision and multimodal apps, and Claude Fable 5.1 (XHigh) for general-purpose workloads.
| Metric | Claude 5.5 Sonnet | Claude Fable 5.1 (XHigh) |
|---|---|---|
| Podium Score | 94.8 ▲ | 89.0 |
| Arena Elo | 1520 | — |
| Intelligence Index | 95.0 | — |
| Coding | 91.5 ▲ | 88.0 |
| Math | 94.2 | — |
| Reasoning | 95.0 ▲ | 85.0 |
| Agentic | 89.4 | — |
| Knowledge | 88.0 ▲ | 45.0 |
| Multimodal | 96.0 ▲ | 30.0 |
| Long-context | 98.0 | — |
| Output speed | 94 t/s ▲ | 78 t/s |
| Output price | $15/M | $15/M |
| Context window | 1000K ▲ | 500K |
Scores aggregated from five independent leaderboards. See Methodology. More head-to-heads: Claude 5.5 Sonnet vs Claude Mythos · Claude 5.5 Sonnet vs Kimi K3.1 Pro · Claude 5.5 Sonnet vs Eleven Multilingual v3 · Claude 5.5 Sonnet vs FLUX.2 Pro