Claude Fable 5 vs GPT-5.4 Mini
As of Oct 14, 2026, Claude Fable 5 leads GPT-5.4 Mini 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-5.4 Mini
#36 Best recorded rank: #36 in Abstraction (ARC), as of Oct 14, 2026.
| Category | Claude Fable 5 | GPT-5.4 Mini |
|---|---|---|
| General LLM | #3 · Near-SOTA · General LLM Margin 2.040816326530617 LMArena leaderboard dataset · Oct 13, 2026 | #59 · #59 in General LLM Margin 40.136054421768705 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #3 · Near-SOTA · Reasoning Margin 2.7397260273972535 LMArena leaderboard dataset · Oct 13, 2026 | #59 · #59 in Reasoning Margin 41.0958904109589 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 | #52 · #52 in Science Margin — Epoch AI benchmarking hub · Mar 17, 2026 |
| Coding | #6 · #6 in Coding Margin 31.818181818181813 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 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 | #74 · #74 in Coding › Web dev Margin 68.22429906542055 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #3 · Near-SOTA · Long context Margin 2.040816326530603 LMArena leaderboard dataset · Oct 13, 2026 | #71 · #71 in Long context Margin 48.29931972789117 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 | #54 · #54 in Factuality Margin 41.04477611940298 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #1 · #1 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jun 9, 2026 | #36 · #36 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Mar 17, 2026 |
Claude Fable 5: $20 per 1M blended tokens.
GPT-5.4 Mini: $1.6875 per 1M blended tokens.
Claude Fable 5: closed weights.
GPT-5.4 Mini: closed weights.
General LLM: As of Oct 14, 2026, Claude Fable 5 leads GPT-5.4 Mini in General LLM at #3 against #59.
Reasoning: As of Oct 14, 2026, Claude Fable 5 leads GPT-5.4 Mini in Reasoning at #3 against #59.
Science: As of Oct 14, 2026, GPT-5.4 Mini leads Claude Fable 5 in Science at #52 against #56.
Coding › Web dev: As of Oct 14, 2026, Claude Fable 5 leads GPT-5.4 Mini in Coding › Web dev at #17 against #74.
Long context: As of Oct 14, 2026, Claude Fable 5 leads GPT-5.4 Mini in Long context at #3 against #71.
Factuality: As of Oct 14, 2026, Claude Fable 5 leads GPT-5.4 Mini in Factuality at #7 against #54.
Abstraction (ARC): As of Oct 14, 2026, Claude Fable 5 leads GPT-5.4 Mini in Abstraction (ARC) at #1 against #36.
Claude Fable 5 or GPT-5.4 Mini?
As of Oct 14, 2026, Claude Fable 5 leads GPT-5.4 Mini in 6 of 7 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, Factuality, and Abstraction (ARC).
Claude Fable 5 or GPT-5.4 Mini for General LLM?
As of Oct 14, 2026, Claude Fable 5 leads GPT-5.4 Mini in General LLM at #3 against #59.
Claude Fable 5 or GPT-5.4 Mini for Reasoning?
As of Oct 14, 2026, Claude Fable 5 leads GPT-5.4 Mini in Reasoning at #3 against #59.
Claude Fable 5 or GPT-5.4 Mini for Science?
As of Oct 14, 2026, GPT-5.4 Mini leads Claude Fable 5 in Science at #52 against #56.