Claude Fable 5 vs Claude Haiku 4.5
As of Oct 14, 2026, Claude Fable 5 leads Claude Haiku 4.5 in 7 of 7 shared categories: General LLM, Reasoning, Science, Coding › Web dev, Long context, Factuality, and Abstraction (ARC).
Claude Fable 5
Close. Near-SOTA in General LLM, rank #3.
Claude Haiku 4.5
#78 Best recorded rank: #78 in Abstraction (ARC), as of Oct 14, 2026.
| Category | Claude Fable 5 | Claude Haiku 4.5 |
|---|---|---|
| General LLM | #3 · Near-SOTA · General LLM Margin 2.040816326530617 LMArena leaderboard dataset · Oct 13, 2026 | #104 · #104 in General LLM Margin 70.74829931972789 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #3 · Near-SOTA · Reasoning Margin 2.7397260273972535 LMArena leaderboard dataset · Oct 13, 2026 | #91 · #91 in Reasoning Margin 63.013698630136986 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #56 · #56 in Science Margin — Epoch AI benchmarking hub · Jun 9, 2026 | #109 · #109 in Science Margin — Epoch AI benchmarking hub · Oct 15, 2025 |
| Coding | #6 · #6 in Coding Margin 31.818181818181813 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — Scale Labs leaderboards · Oct 14, 2026 |
| Coding › Agentic | #6 · #6 in Coding › Agentic Margin 31.818181818181813 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 | #92 · #92 in Coding › Web dev Margin 85.04672897196262 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #3 · Near-SOTA · Long context Margin 2.040816326530603 LMArena leaderboard dataset · Oct 13, 2026 | #84 · #84 in Long context Margin 57.142857142857146 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #5 · Was SOTA · Vision Margin 15.78947368421052 Epoch AI benchmarking hub · Jun 9, 2026 | — |
| Factuality | #7 · Was SOTA · Factuality Margin 5.97014925373135 LMArena leaderboard dataset · Oct 13, 2026 | #97 · #97 in Factuality Margin 73.13432835820896 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #1 · #1 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jun 9, 2026 | #78 · #78 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Oct 15, 2025 |
Claude Fable 5: $20 per 1M blended tokens.
Claude Haiku 4.5: $2.0000000000000004 per 1M blended tokens.
Claude Fable 5: closed weights.
Claude Haiku 4.5: closed weights.
General LLM: As of Oct 14, 2026, Claude Fable 5 leads Claude Haiku 4.5 in General LLM at #3 against #104.
Reasoning: As of Oct 14, 2026, Claude Fable 5 leads Claude Haiku 4.5 in Reasoning at #3 against #91.
Science: As of Oct 14, 2026, Claude Fable 5 leads Claude Haiku 4.5 in Science at #56 against #109.
Coding › Web dev: As of Oct 14, 2026, Claude Fable 5 leads Claude Haiku 4.5 in Coding › Web dev at #17 against #92.
Long context: As of Oct 14, 2026, Claude Fable 5 leads Claude Haiku 4.5 in Long context at #3 against #84.
Factuality: As of Oct 14, 2026, Claude Fable 5 leads Claude Haiku 4.5 in Factuality at #7 against #97.
Abstraction (ARC): As of Oct 14, 2026, Claude Fable 5 leads Claude Haiku 4.5 in Abstraction (ARC) at #1 against #78.
Claude Fable 5 · Claude Haiku 4.5
Claude Fable 5 or Claude Haiku 4.5?
As of Oct 14, 2026, Claude Fable 5 leads Claude Haiku 4.5 in 7 of 7 shared categories: General LLM, Reasoning, Science, Coding › Web dev, Long context, Factuality, and Abstraction (ARC).
Claude Fable 5 or Claude Haiku 4.5 for General LLM?
As of Oct 14, 2026, Claude Fable 5 leads Claude Haiku 4.5 in General LLM at #3 against #104.
Claude Fable 5 or Claude Haiku 4.5 for Reasoning?
As of Oct 14, 2026, Claude Fable 5 leads Claude Haiku 4.5 in Reasoning at #3 against #91.
Claude Fable 5 or Claude Haiku 4.5 for Science?
As of Oct 14, 2026, Claude Fable 5 leads Claude Haiku 4.5 in Science at #56 against #109.