# Claude Fable 5.1 vs GLM 4 6V

As of Oct 15, 2026, Claude Fable 5.1 leads GLM 4 6V in 4 of 4 shared categories: General LLM, Reasoning, Long context, and Factuality.

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

GLM 4 6V: $0.44999999999999996 per 1M blended tokens.

Claude Fable 5.1: closed weights.

GLM 4 6V: open weights.

- Which to pick, General LLM: As of Oct 15, 2026, Claude Fable 5.1 leads GLM 4 6V in General LLM at #6 against #178.
- Which to pick, Reasoning: As of Oct 15, 2026, Claude Fable 5.1 leads GLM 4 6V in Reasoning at #5 against #187.
- Which to pick, Long context: As of Oct 15, 2026, Claude Fable 5.1 leads GLM 4 6V in Long context at #6 against #178.
- Which to pick, Factuality: As of Oct 15, 2026, Claude Fable 5.1 leads GLM 4 6V in Factuality at #1 against #147.

As of Oct 15, 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).

As of Oct 15, 2026, GLM 4 6V is ranked #147 in Factuality (since Oct 15, 2026; sources LMArena Text factuality; methodology v1.0).