Claude Fable 5.1 vs Claude Sonnet 4.6
As of Oct 14, 2026, Claude Fable 5.1 leads Claude Sonnet 4.6 in 7 of 7 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, Vision, Factuality, and Abstraction (ARC).
Claude Fable 5.1
Yes. SOTA in co-SOTA in Factuality.
Claude Sonnet 4.6
It used to be. Was SOTA in Long context.
| Category | Claude Fable 5.1 | Claude Sonnet 4.6 |
|---|---|---|
| General LLM | #6 · Was SOTA · General LLM Margin 4.08163265306122 LMArena leaderboard dataset · Oct 13, 2026 | #32 · #32 in General LLM Margin 21.768707482993193 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #5 · Was SOTA · Reasoning Margin 4.109589041095887 LMArena leaderboard dataset · Oct 13, 2026 | #20 · #20 in Reasoning Margin 14.38356164383562 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #2 · Near-SOTA · Math Margin 2.2222222222222285 Epoch AI benchmarking hub · Sep 1, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | — | #50 · #50 in Science Margin — Epoch AI benchmarking hub · Feb 17, 2026 |
| Coding | #3 · Near-SOTA · Coding Margin 18.181818181818187 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — Epoch AI benchmarking hub · Feb 17, 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 | #41 · #41 in Coding › Web dev Margin 37.38317757009346 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #6 · Was SOTA · Long context Margin 4.08163265306122 LMArena leaderboard dataset · Oct 13, 2026 | #20 · Was SOTA · Long context Margin 13.605442176870753 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #6 · #6 in Vision Margin 18.421052631578945 Epoch AI benchmarking hub · Sep 1, 2026 | #23 · Was SOTA · Vision Margin 63.1578947368421 Epoch AI benchmarking hub · Feb 17, 2026 |
| Factuality | #1 · Co-SOTA · Factuality Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #34 · #34 in Factuality Margin 26.11940298507463 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #3 · #3 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 1, 2026 | #23 · #23 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Feb 17, 2026 |
Claude Fable 5.1: $20 per 1M blended tokens.
Claude Sonnet 4.6: $6 per 1M blended tokens.
Claude Fable 5.1: closed weights.
Claude Sonnet 4.6: closed weights.
General LLM: As of Oct 14, 2026, Claude Fable 5.1 leads Claude Sonnet 4.6 in General LLM at #6 against #32.
Reasoning: As of Oct 14, 2026, Claude Fable 5.1 leads Claude Sonnet 4.6 in Reasoning at #5 against #20.
Coding › Web dev: As of Oct 14, 2026, Claude Fable 5.1 leads Claude Sonnet 4.6 in Coding › Web dev at #5 against #41.
Long context: As of Oct 14, 2026, Claude Fable 5.1 leads Claude Sonnet 4.6 in Long context at #6 against #20.
Vision: As of Oct 14, 2026, Claude Fable 5.1 leads Claude Sonnet 4.6 in Vision at #6 against #23.
Factuality: As of Oct 14, 2026, Claude Fable 5.1 leads Claude Sonnet 4.6 in Factuality at #1 against #34.
Abstraction (ARC): As of Oct 14, 2026, Claude Fable 5.1 leads Claude Sonnet 4.6 in Abstraction (ARC) at #3 against #23.
Claude Fable 5.1 · Claude Sonnet 4.6
Claude Fable 5.1 or Claude Sonnet 4.6?
As of Oct 14, 2026, Claude Fable 5.1 leads Claude Sonnet 4.6 in 7 of 7 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, Vision, Factuality, and Abstraction (ARC).
Claude Fable 5.1 or Claude Sonnet 4.6 for General LLM?
As of Oct 14, 2026, Claude Fable 5.1 leads Claude Sonnet 4.6 in General LLM at #6 against #32.
Claude Fable 5.1 or Claude Sonnet 4.6 for Reasoning?
As of Oct 14, 2026, Claude Fable 5.1 leads Claude Sonnet 4.6 in Reasoning at #5 against #20.
Claude Fable 5.1 or Claude Sonnet 4.6 for Coding › Web dev?
As of Oct 14, 2026, Claude Fable 5.1 leads Claude Sonnet 4.6 in Coding › Web dev at #5 against #41.