Claude Fable 5.1 vs GPT-5.4 Mini
As of Oct 15, 2026, Claude Fable 5.1 leads GPT-5.4 Mini in 6 of 6 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, Factuality, and Abstraction (ARC).
Claude Fable 5.1
Yes. SOTA in Factuality (tied).
GPT-5.4 Mini
#36 Best recorded rank: #36 in Abstraction (ARC), as of Oct 15, 2026.
| Category | Claude Fable 5.1 | GPT-5.4 Mini |
|---|---|---|
| General LLM | #6 · Near-SOTA · General LLM Margin 3.191489361702125 LMArena leaderboard dataset · Oct 13, 2026 | #75 · #75 in General LLM Margin 39.8936170212766 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #5 · Near-SOTA · Reasoning Margin 3.191489361702125 LMArena leaderboard dataset · Oct 13, 2026 | #74 · #74 in Reasoning Margin 39.8936170212766 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #2 · Near-SOTA · Math Margin 2.2222222222222285 Epoch AI benchmarking hub · Sep 1, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | — | #52 · #52 in Science Margin — Epoch AI benchmarking hub · Mar 17, 2026 |
| Coding | #3 · Near-SOTA · Coding Margin 18.181818181818187 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Agentic | #3 · Near-SOTA · Coding › Agentic Margin 18.181818181818187 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Web dev | #5 · Near-SOTA · Coding › Web dev Margin 3.200000000000003 LMArena leaderboard dataset · Oct 13, 2026 | #81 · #81 in Coding › Web dev Margin 64 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #6 · Near-SOTA · Long context Margin 3.1914893617021107 LMArena leaderboard dataset · Oct 13, 2026 | #87 · #87 in Long context Margin 46.27659574468085 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #6 · #6 in Vision Margin 18.421052631578945 Epoch AI benchmarking hub · Sep 1, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 |
| Factuality | #1 · Co-SOTA · Factuality Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #65 · #65 in Factuality Margin 38.372093023255815 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #3 · #3 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 1, 2026 | #36 · #36 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Mar 17, 2026 |
Claude Fable 5.1: $20 per 1M blended tokens.
GPT-5.4 Mini: $1.6875 per 1M blended tokens.
Claude Fable 5.1: closed weights.
GPT-5.4 Mini: closed weights.
General LLM: As of Oct 15, 2026, Claude Fable 5.1 leads GPT-5.4 Mini in General LLM at #6 against #75.
Reasoning: As of Oct 15, 2026, Claude Fable 5.1 leads GPT-5.4 Mini in Reasoning at #5 against #74.
Coding › Web dev: As of Oct 15, 2026, Claude Fable 5.1 leads GPT-5.4 Mini in Coding › Web dev at #5 against #81.
Long context: As of Oct 15, 2026, Claude Fable 5.1 leads GPT-5.4 Mini in Long context at #6 against #87.
Factuality: As of Oct 15, 2026, Claude Fable 5.1 leads GPT-5.4 Mini in Factuality at #1 against #65.
Abstraction (ARC): As of Oct 15, 2026, Claude Fable 5.1 leads GPT-5.4 Mini in Abstraction (ARC) at #3 against #36.
Claude Fable 5.1 · GPT-5.4 Mini
Claude Fable 5.1 or GPT-5.4 Mini?
As of Oct 15, 2026, Claude Fable 5.1 leads GPT-5.4 Mini in 6 of 6 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, Factuality, and Abstraction (ARC).
Claude Fable 5.1 or GPT-5.4 Mini for General LLM?
As of Oct 15, 2026, Claude Fable 5.1 leads GPT-5.4 Mini in General LLM at #6 against #75.
Claude Fable 5.1 or GPT-5.4 Mini for Reasoning?
As of Oct 15, 2026, Claude Fable 5.1 leads GPT-5.4 Mini in Reasoning at #5 against #74.
Claude Fable 5.1 or GPT-5.4 Mini for Coding › Web dev?
As of Oct 15, 2026, Claude Fable 5.1 leads GPT-5.4 Mini in Coding › Web dev at #5 against #81.