Claude Fable 5.1 vs O1 Pro
As of Oct 14, 2026, Claude Fable 5.1 leads O1 Pro in 2 of 2 shared categories: Math and Abstraction (ARC).
Claude Fable 5.1
Yes. SOTA in co-SOTA in Factuality.
O1 Pro
#32 Best current rank: #32 in Math, as of Oct 14, 2026.
| Category | Claude Fable 5.1 | O1 Pro |
|---|---|---|
| General LLM | #6 · Was SOTA · General LLM Margin 4.08163265306122 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Reasoning | #5 · Was SOTA · Reasoning Margin 4.109589041095887 LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — Epoch AI benchmarking hub · Mar 19, 2025 |
| Math | #2 · Near-SOTA · Math Margin 2.2222222222222285 Epoch AI benchmarking hub · Sep 1, 2026 | #32 · #32 in Math Margin 71.11111111111111 Epoch AI benchmarking hub · Mar 19, 2025 |
| Coding | #3 · Near-SOTA · Coding Margin 18.181818181818187 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Agentic | #3 · Near-SOTA · Coding › Agentic Margin 18.181818181818187 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Web dev | #5 · Near-SOTA · Coding › Web dev Margin 3.738317757009341 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Long context | #6 · Was SOTA · Long context Margin 4.08163265306122 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Vision | #6 · #6 in Vision Margin 18.421052631578945 Epoch AI benchmarking hub · Sep 1, 2026 | — |
| Factuality | #1 · Co-SOTA · Factuality Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Abstraction (ARC) | #3 · #3 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 1, 2026 | #68 · #68 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Mar 19, 2025 |
Claude Fable 5.1: $20 per 1M blended tokens.
O1 Pro: $262.5 per 1M blended tokens.
Claude Fable 5.1: closed weights.
O1 Pro: closed weights.
Math: As of Oct 14, 2026, Claude Fable 5.1 leads O1 Pro in Math at #2 against #32.
Abstraction (ARC): As of Oct 14, 2026, Claude Fable 5.1 leads O1 Pro in Abstraction (ARC) at #3 against #68.
Claude Fable 5.1 or O1 Pro?
As of Oct 14, 2026, Claude Fable 5.1 leads O1 Pro in 2 of 2 shared categories: Math and Abstraction (ARC).
Claude Fable 5.1 or O1 Pro for Math?
As of Oct 14, 2026, Claude Fable 5.1 leads O1 Pro in Math at #2 against #32.
Claude Fable 5.1 or O1 Pro for Abstraction (ARC)?
As of Oct 14, 2026, Claude Fable 5.1 leads O1 Pro in Abstraction (ARC) at #3 against #68.