# Claude 3 Opus vs Claude Opus 5

As of Oct 15, 2026, Claude 3 Opus leads Claude Opus 5 in 0 of 2 shared categories.

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

Claude Opus 5: $10 per 1M blended tokens.

Claude 3 Opus: closed weights.

Claude Opus 5: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, Claude 3 Opus and Claude Opus 5 share #11 in General LLM.
- Which to pick, Science: As of Oct 15, 2026, Claude Opus 5 leads Claude 3 Opus in Science at #12 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, Claude Opus 5 is near state of the art, rank #4 in Factuality (since Oct 15, 2026; sources LMArena Text factuality; methodology v1.0).