Compare · 2026-10-14

Claude Fable 5 vs Claude Opus 4.5 20251101

As of Oct 14, 2026, Claude Fable 5 leads Claude Opus 4.5 20251101 in 1 of 2 shared categories: Abstraction (ARC).

CategoryClaude Fable 5Claude Opus 4.5 20251101
General LLM
#3 · Near-SOTA · General LLM
Margin 2.040816326530617
LMArena leaderboard dataset · Oct 13, 2026
—
Reasoning
#3 · Near-SOTA · Reasoning
Margin 2.7397260273972535
LMArena leaderboard dataset · Oct 13, 2026
#— · Not enough data
Margin —
Epoch AI benchmarking hub · Nov 24, 2025
Math
#— · Not enough data
Margin —
LMArena leaderboard dataset · Oct 13, 2026
—
Science
#56 · #56 in Science
Margin —
Epoch AI benchmarking hub · Jun 9, 2026
#55 · #55 in Science
Margin —
Epoch AI benchmarking hub · Nov 24, 2025
Coding
#6 · #6 in Coding
Margin 31.818181818181813
Terminal-Bench Harbor Hub · Oct 6, 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
—
Long context
#3 · Near-SOTA · Long context
Margin 2.040816326530603
LMArena leaderboard dataset · Oct 13, 2026
—
Vision
#5 · Was SOTA · Vision
Margin 15.78947368421052
Epoch AI benchmarking hub · Jun 9, 2026
—
Factuality
#7 · Was SOTA · Factuality
Margin 5.97014925373135
LMArena leaderboard dataset · Oct 13, 2026
#— · Not enough data
Margin —
Epoch AI benchmarking hub · Nov 24, 2025
Abstraction (ARC)
#1 · #1 in Abstraction (ARC)
Margin —
Epoch AI benchmarking hub · Jun 9, 2026
#27 · #27 in Abstraction (ARC)
Margin —
Epoch AI benchmarking hub · Nov 24, 2025
Price per 1M tokens

Claude Fable 5: $20 per 1M blended tokens.

Claude Opus 4.5 20251101: price per 1M tokens is unset in the catalog.

Open weights

Claude Fable 5: closed weights.

Claude Opus 4.5 20251101: closed weights.

Which to pick

Science: As of Oct 14, 2026, Claude Opus 4.5 20251101 leads Claude Fable 5 in Science at #55 against #56.

Abstraction (ARC): As of Oct 14, 2026, Claude Fable 5 leads Claude Opus 4.5 20251101 in Abstraction (ARC) at #1 against #27.

Claude Fable 5 · Claude Opus 4.5 20251101

Claude Fable 5 or Claude Opus 4.5 20251101?

As of Oct 14, 2026, Claude Fable 5 leads Claude Opus 4.5 20251101 in 1 of 2 shared categories: Abstraction (ARC).

Claude Fable 5 or Claude Opus 4.5 20251101 for Science?

As of Oct 14, 2026, Claude Opus 4.5 20251101 leads Claude Fable 5 in Science at #55 against #56.

Claude Fable 5 or Claude Opus 4.5 20251101 for Abstraction (ARC)?

As of Oct 14, 2026, Claude Fable 5 leads Claude Opus 4.5 20251101 in Abstraction (ARC) at #1 against #27.