# Claude 3.5 Sonnet vs Gemini 3.1 Pro Preview

As of Oct 15, 2026, Claude 3.5 Sonnet leads Gemini 3.1 Pro Preview in 0 of 5 shared categories.

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

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

Claude 3.5 Sonnet: closed weights.

Gemini 3.1 Pro Preview: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, Gemini 3.1 Pro Preview leads Claude 3.5 Sonnet in General LLM at #15 against #181.
- Which to pick, Reasoning: As of Oct 15, 2026, Gemini 3.1 Pro Preview leads Claude 3.5 Sonnet in Reasoning at #14 against #175.
- Which to pick, Math: As of Oct 15, 2026, Gemini 3.1 Pro Preview leads Claude 3.5 Sonnet in Math at #3 against #43.
- Which to pick, Science: As of Oct 15, 2026, Gemini 3.1 Pro Preview leads Claude 3.5 Sonnet in Science at #7 against #119.
- Which to pick, Long context: As of Oct 15, 2026, Gemini 3.1 Pro Preview leads Claude 3.5 Sonnet in Long context at #12 against #163.

As of Oct 15, 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 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).