# Claude 3 Opus vs GLM 5.3 Flash

As of Oct 14, 2026, Claude 3 Opus leads GLM 5.3 Flash in 1 of 2 shared categories: General LLM.

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

GLM 5.3 Flash: $0.2375 per 1M blended tokens.

Claude 3 Opus: closed weights.

GLM 5.3 Flash: open weights.

- Which to pick, General LLM: As of Oct 14, 2026, Claude 3 Opus leads GLM 5.3 Flash in General LLM at #9 against #30.
- Which to pick, Science: As of Oct 14, 2026, GLM 5.3 Flash leads Claude 3 Opus in Science at #34 against #138.

As of Oct 14, 2026, Claude 3 Opus is ranked #9 in General LLM (since Oct 14, 2026; sources LMArena Text (style-controlled, overall); methodology v1.0).

As of Oct 14, 2026, GLM 5.3 Flash is state of the art on best per dollar in Coding (since Oct 14, 2026; sources Terminal-Bench 4.0; methodology v1.0).