# Claude 3 Opus vs GLM 5.1

As of Oct 15, 2026, Claude 3 Opus leads GLM 5.1 in 1 of 2 shared categories: General LLM.

Claude 3 Opus: price per 1M tokens is unset in the catalog.

GLM 5.1: $1.4834999999999998 per 1M blended tokens.

Claude 3 Opus: closed weights.

GLM 5.1: open weights.

- Which to pick, General LLM: As of Oct 15, 2026, Claude 3 Opus leads GLM 5.1 in General LLM at #11 against #46.
- Which to pick, Science: As of Oct 15, 2026, GLM 5.1 leads Claude 3 Opus in Science at #35 against #138.

As of Oct 15, 2026, Claude 3 Opus is ranked #11 in General LLM (since Oct 15, 2026; sources LMArena Text (style-controlled, overall); methodology v1.0).

As of Oct 15, 2026, GLM 5.1 is a former state-of-the-art holder in Reasoning (since May 27, 2026; sources LMArena Text (style-controlled, hard prompts); methodology v1.0).