# Claude Fable 5 vs O1 Preview

As of Oct 14, 2026, Claude Fable 5 leads O1 Preview in 5 of 5 shared categories: General LLM, Reasoning, Science, Long context, and Abstraction (ARC).

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

O1 Preview: price per 1M tokens is unset in the catalog.

Claude Fable 5: closed weights.

O1 Preview: closed weights.

- Which to pick, General LLM: As of Oct 14, 2026, Claude Fable 5 leads O1 Preview in General LLM at #3 against #129.
- Which to pick, Reasoning: As of Oct 14, 2026, Claude Fable 5 leads O1 Preview in Reasoning at #3 against #137.
- Which to pick, Science: As of Oct 14, 2026, Claude Fable 5 leads O1 Preview in Science at #56 against #125.
- Which to pick, Long context: As of Oct 14, 2026, Claude Fable 5 leads O1 Preview in Long context at #3 against #135.
- Which to pick, Abstraction (ARC): As of Oct 14, 2026, Claude Fable 5 leads O1 Preview in Abstraction (ARC) at #1 against #73.

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, O1 Preview is a former state-of-the-art holder in General LLM (since Sep 27, 2024; sources LMArena Text (style-controlled, overall); methodology v1.0).