Claude Fable 5.1vsClaude Opus 5
Claude Fable 5.1 leads the overall Podium Score by 7.0 points (88.4 vs 81.4).Category wins: Claude Fable 5.1 3 — 0 Claude Opus 5.Claude Fable 5.1 is the cheaper pick ($15/M vs $25/M per 1M output tokens). Claude Fable 5.1 is faster (85 t/s vs 60 t/s).
Key VerdictAggregated 2026 Benchmark Analysis
Claude Fable 5.1 is rated higher overall with a Podium Score of 88.4 (vs 81.4 for Claude Opus 5). In head-to-head domain evaluations, Claude Fable 5.1 outperforms in 3 of 7 benchmark categories.
Coding & Engineering
Claude Fable 5.1 (95.5)
Inference Speed
Claude Fable 5.1 (85 t/s)
Cost Efficiency
Claude Fable 5.1 ($15/M/M)
| Metric | Claude Fable 5.1 | Claude Opus 5 |
|---|---|---|
| Podium Score | 88.4 ▲ | 81.4 |
| Arena Elo | — | 1492 |
| Intelligence Index | — | 61.0 |
| Coding | 95.5 ▲ | 70.4 |
| Math | — | — |
| Reasoning | 92.0 ▲ | 82.3 |
| Agentic | — | — |
| Knowledge | 58.0 ▲ | 37.1 |
| Multimodal | 62.0 | — |
| Long-context | — | 99.2 |
| Output speed | 85 t/s ▲ | 60 t/s |
| Output price | $15/M ▲ | $25/M |
| Context window | 500K | 1000K ▲ |
Scores aggregated from five independent leaderboards. See Methodology. More head-to-heads: Claude Fable 5.1 vs Claude Mythos · Claude Fable 5.1 vs Claude Fable 5 · Claude Fable 5.1 vs GPT-6 Astra · Claude Fable 5.1 vs Kimi K3