# GLM 5.2 vs GPT-5.5

As of Oct 14, 2026, GLM 5.2 leads GPT-5.5 in 2 of 7 shared categories: Science and Coding › Web dev.

GLM 5.2: $1.7799999999999998 per 1M blended tokens.

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

GLM 5.2: open weights.

GPT-5.5: closed weights.

- Which to pick, General LLM: As of Oct 14, 2026, GPT-5.5 leads GLM 5.2 in General LLM at #21 against #26.
- Which to pick, Reasoning: As of Oct 14, 2026, GPT-5.5 leads GLM 5.2 in Reasoning at #25 against #30.
- Which to pick, Science: As of Oct 14, 2026, GLM 5.2 leads GPT-5.5 in Science at #23 against #30.
- Which to pick, Coding › Web dev: As of Oct 14, 2026, GLM 5.2 leads GPT-5.5 in Coding › Web dev at #23 against #44.
- Which to pick, Long context: As of Oct 14, 2026, GPT-5.5 leads GLM 5.2 in Long context at #23 against #25.
- Which to pick, Factuality: As of Oct 14, 2026, GPT-5.5 leads GLM 5.2 in Factuality at #5 against #31.
- Which to pick, Abstraction (ARC): As of Oct 14, 2026, GPT-5.5 leads GLM 5.2 in Abstraction (ARC) at #7 against #29.

As of Oct 14, 2026, GLM 5.2 is a former state-of-the-art holder in Coding › Web dev (since Jun 18, 2026; sources LMArena WebDev; methodology v1.0).

As of Oct 14, 2026, GPT-5.5 is a former state-of-the-art holder in General LLM (since Apr 28, 2026; sources LMArena Text (style-controlled, overall); methodology v1.0).