Claude Fable 5 vs GPT-5.4
As of Oct 14, 2026, Claude Fable 5 leads GPT-5.4 in 5 of 7 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Abstraction (ARC).
Claude Fable 5
Close. Near-SOTA in General LLM, rank #3.
GPT-5.4
It used to be. Was SOTA in General LLM.
| Category | Claude Fable 5 | GPT-5.4 |
|---|---|---|
| General LLM | #3 · Near-SOTA · General LLM Margin 2.040816326530617 LMArena leaderboard dataset · Oct 13, 2026 | #28 · Was SOTA · General LLM Margin 19.04761904761905 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #3 · Near-SOTA · Reasoning Margin 2.7397260273972535 LMArena leaderboard dataset · Oct 13, 2026 | #29 · #29 in Reasoning Margin 20.54794520547945 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #9 · #9 in Math Margin 17.777777777777757 Epoch AI benchmarking hub · Mar 5, 2026 |
| Science | #56 · #56 in Science Margin — Epoch AI benchmarking hub · Jun 9, 2026 | #16 · #16 in Science Margin — Epoch AI benchmarking hub · Mar 5, 2026 |
| Coding | #6 · #6 in Coding Margin 31.818181818181813 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — Epoch AI benchmarking hub · Mar 5, 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 | #55 · #55 in Coding › Web dev Margin 50.467289719626166 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #3 · Near-SOTA · Long context Margin 2.040816326530603 LMArena leaderboard dataset · Oct 13, 2026 | #34 · #34 in Long context Margin 23.12925170068027 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #5 · Was SOTA · Vision Margin 15.78947368421052 Epoch AI benchmarking hub · Jun 9, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 |
| Factuality | #7 · Was SOTA · Factuality Margin 5.97014925373135 LMArena leaderboard dataset · Oct 13, 2026 | #6 · Was SOTA · Factuality Margin 5.22388059701494 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #1 · #1 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jun 9, 2026 | #10 · #10 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Mar 5, 2026 |
Claude Fable 5: $20 per 1M blended tokens.
GPT-5.4: $5.625 per 1M blended tokens.
Claude Fable 5: closed weights.
GPT-5.4: closed weights.
General LLM: As of Oct 14, 2026, Claude Fable 5 leads GPT-5.4 in General LLM at #3 against #28.
Reasoning: As of Oct 14, 2026, Claude Fable 5 leads GPT-5.4 in Reasoning at #3 against #29.
Science: As of Oct 14, 2026, GPT-5.4 leads Claude Fable 5 in Science at #16 against #56.
Coding › Web dev: As of Oct 14, 2026, Claude Fable 5 leads GPT-5.4 in Coding › Web dev at #17 against #55.
Long context: As of Oct 14, 2026, Claude Fable 5 leads GPT-5.4 in Long context at #3 against #34.
Factuality: As of Oct 14, 2026, GPT-5.4 leads Claude Fable 5 in Factuality at #6 against #7.
Abstraction (ARC): As of Oct 14, 2026, Claude Fable 5 leads GPT-5.4 in Abstraction (ARC) at #1 against #10.
Claude Fable 5 or GPT-5.4?
As of Oct 14, 2026, Claude Fable 5 leads GPT-5.4 in 5 of 7 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Abstraction (ARC).
Claude Fable 5 or GPT-5.4 for General LLM?
As of Oct 14, 2026, Claude Fable 5 leads GPT-5.4 in General LLM at #3 against #28.
Claude Fable 5 or GPT-5.4 for Reasoning?
As of Oct 14, 2026, Claude Fable 5 leads GPT-5.4 in Reasoning at #3 against #29.
Claude Fable 5 or GPT-5.4 for Science?
As of Oct 14, 2026, GPT-5.4 leads Claude Fable 5 in Science at #16 against #56.