# Claude Opus 4.6 vs GLM 4.5 Air

As of Oct 15, 2026, Claude Opus 4.6 leads GLM 4.5 Air in 5 of 5 shared categories: General LLM, Reasoning, Math, Long context, and Factuality.

Claude Opus 4.6: $10 per 1M blended tokens.

GLM 4.5 Air: $0.31 per 1M blended tokens.

Claude Opus 4.6: closed weights.

GLM 4.5 Air: open weights.

- Which to pick, General LLM: As of Oct 15, 2026, Claude Opus 4.6 leads GLM 4.5 Air in General LLM at #4 against #183.
- Which to pick, Reasoning: As of Oct 15, 2026, Claude Opus 4.6 leads GLM 4.5 Air in Reasoning at #2 against #181.
- Which to pick, Math: As of Oct 15, 2026, Claude Opus 4.6 leads GLM 4.5 Air in Math at #11 against #32.
- Which to pick, Long context: As of Oct 15, 2026, Claude Opus 4.6 leads GLM 4.5 Air in Long context at #2 against #179.
- Which to pick, Factuality: As of Oct 15, 2026, Claude Opus 4.6 leads GLM 4.5 Air in Factuality at #3 against #145.

As of Oct 15, 2026, Claude Opus 4.6 is near state of the art, rank #2 in Reasoning (since Oct 15, 2026; sources LMArena Text (style-controlled, hard prompts); methodology v1.0).

As of Oct 15, 2026, GLM 4.5 Air is ranked #32 in Math (since Oct 15, 2026; sources Humanity's Last Exam; methodology v1.0).