# Claude 3.5 Sonnet vs Claude 3 Opus

As of Oct 14, 2026, Claude 3.5 Sonnet leads Claude 3 Opus in 1 of 2 shared categories: Science.

Claude 3.5 Sonnet: price per 1M tokens is unset in the catalog.

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

Claude 3.5 Sonnet: closed weights.

Claude 3 Opus: closed weights.

- Which to pick, General LLM: As of Oct 14, 2026, Claude 3 Opus leads Claude 3.5 Sonnet in General LLM at #9 against #140.
- Which to pick, Science: As of Oct 14, 2026, Claude 3.5 Sonnet leads Claude 3 Opus in Science at #119 against #138.

As of Oct 14, 2026, Claude 3.5 Sonnet is a former state-of-the-art holder in General LLM (since Aug 28, 2024; sources LMArena Text (style-controlled, overall); methodology v1.0).

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).