# Claude Opus 4.6 vs GLM 5.3

As of Oct 15, 2026, Claude Opus 4.6 leads GLM 5.3 in 4 of 6 shared categories: General LLM, Reasoning, Long context, and Factuality.

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

GLM 5.3: $1.275 per 1M blended tokens.

Claude Opus 4.6: closed weights.

GLM 5.3: open weights.

- Which to pick, General LLM: As of Oct 15, 2026, Claude Opus 4.6 leads GLM 5.3 in General LLM at #4 against #24.
- Which to pick, Reasoning: As of Oct 15, 2026, Claude Opus 4.6 leads GLM 5.3 in Reasoning at #2 against #19.
- Which to pick, Science: As of Oct 15, 2026, GLM 5.3 leads Claude Opus 4.6 in Science at #28 against #32.
- Which to pick, Coding › Web dev: As of Oct 15, 2026, GLM 5.3 leads Claude Opus 4.6 in Coding › Web dev at #20 against #37.
- Which to pick, Long context: As of Oct 15, 2026, Claude Opus 4.6 leads GLM 5.3 in Long context at #2 against #31.
- Which to pick, Factuality: As of Oct 15, 2026, Claude Opus 4.6 leads GLM 5.3 in Factuality at #3 against #31.

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 5.3 is tied for state of the art in General LLM (since Oct 13, 2026; sources LMArena Text (style-controlled, overall); methodology v1.0).