# Gemini 3.1 Pro Preview vs O1

As of Oct 15, 2026, Gemini 3.1 Pro Preview leads O1 in 6 of 6 shared categories: General LLM, Reasoning, Math, Science, Long context, and Abstraction (ARC).

Gemini 3.1 Pro Preview: $4.5 per 1M blended tokens.

O1: $26.25 per 1M blended tokens.

Gemini 3.1 Pro Preview: closed weights.

O1: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, Gemini 3.1 Pro Preview leads O1 in General LLM at #15 against #146.
- Which to pick, Reasoning: As of Oct 15, 2026, Gemini 3.1 Pro Preview leads O1 in Reasoning at #14 against #153.
- Which to pick, Math: As of Oct 15, 2026, Gemini 3.1 Pro Preview leads O1 in Math at #3 against #34.
- Which to pick, Science: As of Oct 15, 2026, Gemini 3.1 Pro Preview leads O1 in Science at #7 against #77.
- Which to pick, Long context: As of Oct 15, 2026, Gemini 3.1 Pro Preview leads O1 in Long context at #12 against #143.
- Which to pick, Abstraction (ARC): As of Oct 15, 2026, Gemini 3.1 Pro Preview leads O1 in Abstraction (ARC) at #2 against #57.

As of Oct 15, 2026, Gemini 3.1 Pro Preview is state of the art on best per dollar in Math (since Oct 14, 2026; sources Humanity's Last Exam; methodology v1.0).

As of Oct 15, 2026, O1 is a former state-of-the-art holder in General LLM (since Jan 28, 2025; sources LMArena Text (style-controlled, overall); methodology v1.0).