Claude Fable 5 vs Claude Fable 5.1
As of Oct 14, 2026, Claude Fable 5 leads Claude Fable 5.1 in 5 of 9 shared categories: General LLM, Reasoning, Long context, Vision, and Abstraction (ARC).
Claude Fable 5
Close. Near-SOTA in General LLM, rank #3.
Claude Fable 5.1
Yes. SOTA in co-SOTA in Factuality.
| Category | Claude Fable 5 | Claude Fable 5.1 |
|---|---|---|
| General LLM | #3 · Near-SOTA · General LLM Margin 2.040816326530617 LMArena leaderboard dataset · Oct 13, 2026 | #6 · Was SOTA · General LLM Margin 4.08163265306122 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #3 · Near-SOTA · Reasoning Margin 2.7397260273972535 LMArena leaderboard dataset · Oct 13, 2026 | #5 · Was SOTA · Reasoning Margin 4.109589041095887 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #2 · Near-SOTA · Math Margin 2.2222222222222285 Epoch AI benchmarking hub · Sep 1, 2026 |
| Science | #56 · #56 in Science Margin — Epoch AI benchmarking hub · Jun 9, 2026 | — |
| Coding | #6 · #6 in Coding Margin 31.818181818181813 Terminal-Bench Harbor Hub · Oct 6, 2026 | #3 · Near-SOTA · Coding Margin 18.181818181818187 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Agentic | #6 · #6 in Coding › Agentic Margin 31.818181818181813 Terminal-Bench Harbor Hub · Oct 6, 2026 | #3 · Near-SOTA · Coding › Agentic Margin 18.181818181818187 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Web dev | #17 · Was SOTA · Coding › Web dev Margin 14.953271028037378 LMArena leaderboard dataset · Oct 13, 2026 | #5 · Near-SOTA · Coding › Web dev Margin 3.738317757009341 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #3 · Near-SOTA · Long context Margin 2.040816326530603 LMArena leaderboard dataset · Oct 13, 2026 | #6 · Was SOTA · Long context Margin 4.08163265306122 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #5 · Was SOTA · Vision Margin 15.78947368421052 Epoch AI benchmarking hub · Jun 9, 2026 | #6 · #6 in Vision Margin 18.421052631578945 Epoch AI benchmarking hub · Sep 1, 2026 |
| Factuality | #7 · Was SOTA · Factuality Margin 5.97014925373135 LMArena leaderboard dataset · Oct 13, 2026 | #1 · Co-SOTA · Factuality Margin 0 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #1 · #1 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jun 9, 2026 | #3 · #3 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 1, 2026 |
Claude Fable 5: $20 per 1M blended tokens.
Claude Fable 5.1: $20 per 1M blended tokens.
Claude Fable 5: closed weights.
Claude Fable 5.1: closed weights.
General LLM: As of Oct 14, 2026, Claude Fable 5 leads Claude Fable 5.1 in General LLM at #3 against #6.
Reasoning: As of Oct 14, 2026, Claude Fable 5 leads Claude Fable 5.1 in Reasoning at #3 against #5.
Coding: As of Oct 14, 2026, Claude Fable 5.1 leads Claude Fable 5 in Coding at #3 against #6.
Coding › Agentic: As of Oct 14, 2026, Claude Fable 5.1 leads Claude Fable 5 in Coding › Agentic at #3 against #6.
Coding › Web dev: As of Oct 14, 2026, Claude Fable 5.1 leads Claude Fable 5 in Coding › Web dev at #5 against #17.
Long context: As of Oct 14, 2026, Claude Fable 5 leads Claude Fable 5.1 in Long context at #3 against #6.
Vision: As of Oct 14, 2026, Claude Fable 5 leads Claude Fable 5.1 in Vision at #5 against #6.
Factuality: As of Oct 14, 2026, Claude Fable 5.1 leads Claude Fable 5 in Factuality at #1 against #7.
Abstraction (ARC): As of Oct 14, 2026, Claude Fable 5 leads Claude Fable 5.1 in Abstraction (ARC) at #1 against #3.
Claude Fable 5 · Claude Fable 5.1
Claude Fable 5 or Claude Fable 5.1?
As of Oct 14, 2026, Claude Fable 5 leads Claude Fable 5.1 in 5 of 9 shared categories: General LLM, Reasoning, Long context, Vision, and Abstraction (ARC).
Claude Fable 5 or Claude Fable 5.1 for General LLM?
As of Oct 14, 2026, Claude Fable 5 leads Claude Fable 5.1 in General LLM at #3 against #6.
Claude Fable 5 or Claude Fable 5.1 for Reasoning?
As of Oct 14, 2026, Claude Fable 5 leads Claude Fable 5.1 in Reasoning at #3 against #5.
Claude Fable 5 or Claude Fable 5.1 for Coding?
As of Oct 14, 2026, Claude Fable 5.1 leads Claude Fable 5 in Coding at #3 against #6.