Claude Fable 5 vs GPT-5
As of Oct 14, 2026, Claude Fable 5 leads GPT-5 in 6 of 7 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, Factuality, and Abstraction (ARC).
Claude Fable 5
Close. Near-SOTA in General LLM, rank #3.
GPT-5
It used to be. Was SOTA in General LLM.
| Category | Claude Fable 5 | GPT-5 |
|---|---|---|
| General LLM | #3 · Near-SOTA · General LLM Margin 2.040816326530617 LMArena leaderboard dataset · Oct 13, 2026 | #76 · Was SOTA · General LLM Margin 51.70068027210884 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #3 · Near-SOTA · Reasoning Margin 2.7397260273972535 LMArena leaderboard dataset · Oct 13, 2026 | #78 · Was SOTA · Reasoning Margin 54.10958904109589 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #15 · Was SOTA · Math Margin 31.111111111111114 Epoch AI benchmarking hub · Aug 7, 2025 |
| Science | #56 · #56 in Science Margin — Epoch AI benchmarking hub · Jun 9, 2026 | #54 · #54 in Science Margin — Epoch AI benchmarking hub · Aug 7, 2025 |
| Coding | #6 · #6 in Coding Margin 31.818181818181813 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — Epoch AI benchmarking hub · Aug 7, 2025 |
| 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 | #66 · #66 in Coding › Web dev Margin 60.74766355140187 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #3 · Near-SOTA · Long context Margin 2.040816326530603 LMArena leaderboard dataset · Oct 13, 2026 | #107 · Was SOTA · Long context Margin 72.78911564625851 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 | #93 · #93 in Factuality Margin 70.14925373134328 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #1 · #1 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jun 9, 2026 | #34 · #34 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Aug 7, 2025 |
Claude Fable 5: $20 per 1M blended tokens.
GPT-5: $3.4375000000000004 per 1M blended tokens.
Claude Fable 5: closed weights.
GPT-5: closed weights.
General LLM: As of Oct 14, 2026, Claude Fable 5 leads GPT-5 in General LLM at #3 against #76.
Reasoning: As of Oct 14, 2026, Claude Fable 5 leads GPT-5 in Reasoning at #3 against #78.
Science: As of Oct 14, 2026, GPT-5 leads Claude Fable 5 in Science at #54 against #56.
Coding › Web dev: As of Oct 14, 2026, Claude Fable 5 leads GPT-5 in Coding › Web dev at #17 against #66.
Long context: As of Oct 14, 2026, Claude Fable 5 leads GPT-5 in Long context at #3 against #107.
Factuality: As of Oct 14, 2026, Claude Fable 5 leads GPT-5 in Factuality at #7 against #93.
Abstraction (ARC): As of Oct 14, 2026, Claude Fable 5 leads GPT-5 in Abstraction (ARC) at #1 against #34.
Claude Fable 5 or GPT-5?
As of Oct 14, 2026, Claude Fable 5 leads GPT-5 in 6 of 7 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, Factuality, and Abstraction (ARC).
Claude Fable 5 or GPT-5 for General LLM?
As of Oct 14, 2026, Claude Fable 5 leads GPT-5 in General LLM at #3 against #76.
Claude Fable 5 or GPT-5 for Reasoning?
As of Oct 14, 2026, Claude Fable 5 leads GPT-5 in Reasoning at #3 against #78.
Claude Fable 5 or GPT-5 for Science?
As of Oct 14, 2026, GPT-5 leads Claude Fable 5 in Science at #54 against #56.