# Claude Fable 5 vs Claude Haiku 4.5 20251001

As of Oct 14, 2026, Claude Fable 5 leads Claude Haiku 4.5 20251001 in 2 of 2 shared categories: Science and Abstraction (ARC).

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

Claude Haiku 4.5 20251001: price per 1M tokens is unset in the catalog.

Claude Fable 5: closed weights.

Claude Haiku 4.5 20251001: closed weights.

- Which to pick, Science: As of Oct 14, 2026, Claude Fable 5 leads Claude Haiku 4.5 20251001 in Science at #56 against #86.
- Which to pick, Abstraction (ARC): As of Oct 14, 2026, Claude Fable 5 leads Claude Haiku 4.5 20251001 in Abstraction (ARC) at #1 against #45.

As of Oct 14, 2026, Claude Fable 5 is near state of the art, rank #3 in General LLM (since Oct 14, 2026; sources LMArena Text (style-controlled, overall); methodology v1.0).

As of Oct 14, 2026, Claude Haiku 4.5 20251001 is ranked #45 in Abstraction (ARC) (since Oct 14, 2026; sources ARC-AGI; methodology v1.0).