# Claude 3.7 Sonnet vs Claude Fable 5.1

As of Oct 14, 2026, Claude 3.7 Sonnet leads Claude Fable 5.1 in 0 of 5 shared categories.

Claude 3.7 Sonnet: price per 1M tokens is unset in the catalog.

Claude Fable 5.1: $20 per 1M blended tokens.

Claude 3.7 Sonnet: closed weights.

Claude Fable 5.1: closed weights.

- Which to pick, General LLM: As of Oct 14, 2026, Claude Fable 5.1 leads Claude 3.7 Sonnet in General LLM at #6 against #143.
- Which to pick, Reasoning: As of Oct 14, 2026, Claude Fable 5.1 leads Claude 3.7 Sonnet in Reasoning at #5 against #135.
- Which to pick, Math: As of Oct 14, 2026, Claude Fable 5.1 leads Claude 3.7 Sonnet in Math at #2 against #33.
- Which to pick, Long context: As of Oct 14, 2026, Claude Fable 5.1 leads Claude 3.7 Sonnet in Long context at #6 against #109.
- Which to pick, Abstraction (ARC): As of Oct 14, 2026, Claude Fable 5.1 leads Claude 3.7 Sonnet in Abstraction (ARC) at #3 against #80.

As of Oct 14, 2026, Claude 3.7 Sonnet is a former state-of-the-art holder in Long context (since Mar 11, 2025; sources LMArena Text (style-controlled, longer query); methodology v1.0).

As of Oct 14, 2026, Claude Fable 5.1 is tied for state of the art in Factuality (since Oct 2, 2026; sources LMArena Text factuality; methodology v1.0).