# Claude Opus 5 vs O1 Mini

As of Oct 14, 2026, Claude Opus 5 leads O1 Mini in 2 of 3 shared categories: Science and Abstraction (ARC).

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

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

Claude Opus 5: closed weights.

O1 Mini: closed weights.

- Which to pick, General LLM: As of Oct 14, 2026, Claude Opus 5 and O1 Mini share #11 in General LLM.
- Which to pick, Science: As of Oct 14, 2026, Claude Opus 5 leads O1 Mini in Science at #12 against #106.
- Which to pick, Abstraction (ARC): As of Oct 14, 2026, Claude Opus 5 leads O1 Mini in Abstraction (ARC) at #3 against #79.

As of Oct 14, 2026, Claude Opus 5 is near state of the art, rank #4 in Factuality (since Oct 14, 2026; sources LMArena Text factuality; methodology v1.0).

As of Oct 14, 2026, O1 Mini is a former state-of-the-art holder in Reasoning (since Sep 27, 2024; sources Humanity's Last Exam, GPQA Diamond, and LMArena Text (style-controlled, hard prompts); methodology v1.0).