# Gemini 3.1 Pro Preview vs Gemini 3.7 Flash

As of Oct 15, 2026, Gemini 3.1 Pro Preview leads Gemini 3.7 Flash in 3 of 8 shared categories: Reasoning, Long context, and Abstraction (ARC).

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

Gemini 3.7 Flash: $1.5 per 1M blended tokens.

Gemini 3.1 Pro Preview: closed weights.

Gemini 3.7 Flash: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, Gemini 3.7 Flash leads Gemini 3.1 Pro Preview in General LLM at #14 against #15.
- Which to pick, Reasoning: As of Oct 15, 2026, Gemini 3.1 Pro Preview leads Gemini 3.7 Flash in Reasoning at #14 against #16.
- Which to pick, Science: As of Oct 15, 2026, Gemini 3.7 Flash leads Gemini 3.1 Pro Preview in Science at #5 against #7.
- Which to pick, Coding › Web dev: As of Oct 15, 2026, Gemini 3.7 Flash leads Gemini 3.1 Pro Preview in Coding › Web dev at #27 against #63.
- Which to pick, Long context: As of Oct 15, 2026, Gemini 3.1 Pro Preview leads Gemini 3.7 Flash in Long context at #12 against #14.
- Which to pick, Vision: As of Oct 15, 2026, Gemini 3.7 Flash leads Gemini 3.1 Pro Preview in Vision at #14 against #25.
- Which to pick, Factuality: As of Oct 15, 2026, Gemini 3.7 Flash leads Gemini 3.1 Pro Preview in Factuality at #16 against #21.
- Which to pick, Abstraction (ARC): As of Oct 15, 2026, Gemini 3.1 Pro Preview leads Gemini 3.7 Flash in Abstraction (ARC) at #2 against #6.

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, Gemini 3.7 Flash is state of the art on best per dollar in Vision (since Oct 14, 2026; sources GDP.pdf; methodology v1.0).