# Claude 3 Opus vs O1 Preview

As of Oct 15, 2026, Claude 3 Opus leads O1 Preview in 1 of 2 shared categories: General LLM.

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

O1 Preview: price per 1M tokens is unset in the catalog.

Claude 3 Opus: closed weights.

O1 Preview: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, Claude 3 Opus leads O1 Preview in General LLM at #11 against #166.
- Which to pick, Science: As of Oct 15, 2026, O1 Preview leads Claude 3 Opus in Science at #125 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, O1 Preview is a former state-of-the-art holder in General LLM (since Sep 27, 2024; sources LMArena Text (style-controlled, overall); methodology v1.0).