Claude Fable 5.1 vs Claude Opus 4.7
As of Oct 14, 2026, Claude Fable 5.1 leads Claude Opus 4.7 in 5 of 8 shared categories: Math, Coding › Web dev, Vision, Factuality, and Abstraction (ARC).
Claude Fable 5.1
Yes. SOTA in co-SOTA in Factuality.
Claude Opus 4.7
Close. Near-SOTA in Reasoning, rank #4.
| Category | Claude Fable 5.1 | Claude Opus 4.7 |
|---|---|---|
| General LLM | #6 · Was SOTA · General LLM Margin 4.08163265306122 LMArena leaderboard dataset · Oct 13, 2026 | #5 · Near-SOTA · General LLM Margin 3.401360544217681 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #5 · Was SOTA · Reasoning Margin 4.109589041095887 LMArena leaderboard dataset · Oct 13, 2026 | #4 · Near-SOTA · Reasoning Margin 3.4246575342465775 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #2 · Near-SOTA · Math Margin 2.2222222222222285 Epoch AI benchmarking hub · Sep 1, 2026 | #10 · #10 in Math Margin 20 Epoch AI benchmarking hub · Apr 16, 2026 |
| Science | — | #34 · #34 in Science Margin — Epoch AI benchmarking hub · Apr 16, 2026 |
| Coding | #3 · Near-SOTA · Coding Margin 18.181818181818187 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — Epoch AI benchmarking hub · Apr 16, 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 | #32 · Was SOTA · Coding › Web dev Margin 28.971962616822424 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #6 · Was SOTA · Long context Margin 4.08163265306122 LMArena leaderboard dataset · Oct 13, 2026 | #4 · Near-SOTA · Long context Margin 2.7210884353741562 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #6 · #6 in Vision Margin 18.421052631578945 Epoch AI benchmarking hub · Sep 1, 2026 | #20 · Was SOTA · Vision Margin 55.26315789473684 Epoch AI benchmarking hub · Apr 16, 2026 |
| Factuality | #1 · Co-SOTA · Factuality Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #12 · #12 in Factuality Margin 9.701492537313428 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #3 · #3 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 1, 2026 | #11 · #11 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Apr 16, 2026 |
Claude Fable 5.1: $20 per 1M blended tokens.
Claude Opus 4.7: $10 per 1M blended tokens.
Claude Fable 5.1: closed weights.
Claude Opus 4.7: closed weights.
General LLM: As of Oct 14, 2026, Claude Opus 4.7 leads Claude Fable 5.1 in General LLM at #5 against #6.
Reasoning: As of Oct 14, 2026, Claude Opus 4.7 leads Claude Fable 5.1 in Reasoning at #4 against #5.
Math: As of Oct 14, 2026, Claude Fable 5.1 leads Claude Opus 4.7 in Math at #2 against #10.
Coding › Web dev: As of Oct 14, 2026, Claude Fable 5.1 leads Claude Opus 4.7 in Coding › Web dev at #5 against #32.
Long context: As of Oct 14, 2026, Claude Opus 4.7 leads Claude Fable 5.1 in Long context at #4 against #6.
Vision: As of Oct 14, 2026, Claude Fable 5.1 leads Claude Opus 4.7 in Vision at #6 against #20.
Factuality: As of Oct 14, 2026, Claude Fable 5.1 leads Claude Opus 4.7 in Factuality at #1 against #12.
Abstraction (ARC): As of Oct 14, 2026, Claude Fable 5.1 leads Claude Opus 4.7 in Abstraction (ARC) at #3 against #11.
Claude Fable 5.1 · Claude Opus 4.7
Claude Fable 5.1 or Claude Opus 4.7?
As of Oct 14, 2026, Claude Fable 5.1 leads Claude Opus 4.7 in 5 of 8 shared categories: Math, Coding › Web dev, Vision, Factuality, and Abstraction (ARC).
Claude Fable 5.1 or Claude Opus 4.7 for General LLM?
As of Oct 14, 2026, Claude Opus 4.7 leads Claude Fable 5.1 in General LLM at #5 against #6.
Claude Fable 5.1 or Claude Opus 4.7 for Reasoning?
As of Oct 14, 2026, Claude Opus 4.7 leads Claude Fable 5.1 in Reasoning at #4 against #5.
Claude Fable 5.1 or Claude Opus 4.7 for Math?
As of Oct 14, 2026, Claude Fable 5.1 leads Claude Opus 4.7 in Math at #2 against #10.