Claude Fable 5 vs Claude Opus 5
As of Oct 14, 2026, Claude Fable 5 leads Claude Opus 5 in 5 of 10 shared categories: General LLM, Reasoning, Long context, Vision, and Abstraction (ARC).
Claude Fable 5
Close. Near-SOTA in General LLM, rank #3.
Claude Opus 5
Close. Near-SOTA in Factuality, rank #4.
| Category | Claude Fable 5 | Claude Opus 5 |
|---|---|---|
| General LLM | #3 · Near-SOTA · General LLM Margin 2.040816326530617 LMArena leaderboard dataset · Oct 13, 2026 | #11 · Was SOTA · General LLM Margin 7.482993197278915 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #3 · Near-SOTA · Reasoning Margin 2.7397260273972535 LMArena leaderboard dataset · Oct 13, 2026 | #9 · Was SOTA · Reasoning Margin 6.849315068493155 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 | #12 · #12 in Science Margin — Epoch AI benchmarking hub · Jul 24, 2026 |
| Coding | #6 · #6 in Coding Margin 31.818181818181813 Terminal-Bench Harbor Hub · Oct 6, 2026 | #4 · #4 in Coding Margin 22.727272727272734 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Agentic | #6 · #6 in Coding › Agentic Margin 31.818181818181813 Terminal-Bench Harbor Hub · Oct 6, 2026 | #4 · #4 in Coding › Agentic Margin 22.727272727272734 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 | #6 · Was SOTA · Coding › Web dev Margin 4.672897196261687 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #3 · Near-SOTA · Long context Margin 2.040816326530603 LMArena leaderboard dataset · Oct 13, 2026 | #9 · Was SOTA · Long context Margin 6.122448979591837 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #5 · Was SOTA · Vision Margin 15.78947368421052 Epoch AI benchmarking hub · Jun 9, 2026 | #12 · #12 in Vision Margin 36.8421052631579 Epoch AI benchmarking hub · Jul 24, 2026 |
| Factuality | #7 · Was SOTA · Factuality Margin 5.97014925373135 LMArena leaderboard dataset · Oct 13, 2026 | #4 · Near-SOTA · Factuality Margin 3.731343283582092 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 · Jul 24, 2026 |
Claude Fable 5: $20 per 1M blended tokens.
Claude Opus 5: $10 per 1M blended tokens.
Claude Fable 5: closed weights.
Claude Opus 5: closed weights.
General LLM: As of Oct 14, 2026, Claude Fable 5 leads Claude Opus 5 in General LLM at #3 against #11.
Reasoning: As of Oct 14, 2026, Claude Fable 5 leads Claude Opus 5 in Reasoning at #3 against #9.
Science: As of Oct 14, 2026, Claude Opus 5 leads Claude Fable 5 in Science at #12 against #56.
Coding: As of Oct 14, 2026, Claude Opus 5 leads Claude Fable 5 in Coding at #4 against #6.
Coding › Agentic: As of Oct 14, 2026, Claude Opus 5 leads Claude Fable 5 in Coding › Agentic at #4 against #6.
Coding › Web dev: As of Oct 14, 2026, Claude Opus 5 leads Claude Fable 5 in Coding › Web dev at #6 against #17.
Long context: As of Oct 14, 2026, Claude Fable 5 leads Claude Opus 5 in Long context at #3 against #9.
Vision: As of Oct 14, 2026, Claude Fable 5 leads Claude Opus 5 in Vision at #5 against #12.
Factuality: As of Oct 14, 2026, Claude Opus 5 leads Claude Fable 5 in Factuality at #4 against #7.
Abstraction (ARC): As of Oct 14, 2026, Claude Fable 5 leads Claude Opus 5 in Abstraction (ARC) at #1 against #3.
Claude Fable 5 · Claude Opus 5
Claude Fable 5 or Claude Opus 5?
As of Oct 14, 2026, Claude Fable 5 leads Claude Opus 5 in 5 of 10 shared categories: General LLM, Reasoning, Long context, Vision, and Abstraction (ARC).
Claude Fable 5 or Claude Opus 5 for General LLM?
As of Oct 14, 2026, Claude Fable 5 leads Claude Opus 5 in General LLM at #3 against #11.
Claude Fable 5 or Claude Opus 5 for Reasoning?
As of Oct 14, 2026, Claude Fable 5 leads Claude Opus 5 in Reasoning at #3 against #9.
Claude Fable 5 or Claude Opus 5 for Science?
As of Oct 14, 2026, Claude Opus 5 leads Claude Fable 5 in Science at #12 against #56.