# GLM 4 6V vs GPT-5.5

As of Oct 15, 2026, GLM 4 6V leads GPT-5.5 in 0 of 4 shared categories.

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

GPT-5.5: $11.25 per 1M blended tokens.

GLM 4 6V: open weights.

GPT-5.5: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, GPT-5.5 leads GLM 4 6V in General LLM at #22 against #178.
- Which to pick, Reasoning: As of Oct 15, 2026, GPT-5.5 leads GLM 4 6V in Reasoning at #26 against #187.
- Which to pick, Long context: As of Oct 15, 2026, GPT-5.5 leads GLM 4 6V in Long context at #26 against #178.
- Which to pick, Factuality: As of Oct 15, 2026, GPT-5.5 leads GLM 4 6V in Factuality at #5 against #147.

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

As of Oct 15, 2026, GPT-5.5 is near state of the art, rank #5 in Factuality (since Oct 15, 2026; sources LMArena Text factuality; methodology v1.0).