# Gemini 3.1 Pro Preview vs GPT-6.1 Sol

As of Oct 15, 2026, Gemini 3.1 Pro Preview leads GPT-6.1 Sol in 4 of 8 shared categories: General LLM, Reasoning, Long context, and Factuality.

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

GPT-6.1 Sol: $4.000000000000001 per 1M blended tokens.

Gemini 3.1 Pro Preview: closed weights.

GPT-6.1 Sol: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, Gemini 3.1 Pro Preview leads GPT-6.1 Sol in General LLM at #15 against #18.
- Which to pick, Reasoning: As of Oct 15, 2026, Gemini 3.1 Pro Preview leads GPT-6.1 Sol in Reasoning at #14 against #15.
- Which to pick, Science: As of Oct 15, 2026, GPT-6.1 Sol leads Gemini 3.1 Pro Preview in Science at #4 against #7.
- Which to pick, Coding › Web dev: As of Oct 15, 2026, GPT-6.1 Sol leads Gemini 3.1 Pro Preview in Coding › Web dev at #4 against #63.
- Which to pick, Long context: As of Oct 15, 2026, Gemini 3.1 Pro Preview leads GPT-6.1 Sol in Long context at #12 against #18.
- Which to pick, Vision: As of Oct 15, 2026, GPT-6.1 Sol leads Gemini 3.1 Pro Preview in Vision at #1 against #25.
- Which to pick, Factuality: As of Oct 15, 2026, Gemini 3.1 Pro Preview leads GPT-6.1 Sol in Factuality at #21 against #33.
- Which to pick, Abstraction (ARC): As of Oct 15, 2026, GPT-6.1 Sol leads Gemini 3.1 Pro Preview in Abstraction (ARC) at #1 against #2.

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, GPT-6.1 Sol is tied for state of the art in Vision (since Sep 30, 2026; sources GDP.pdf; methodology v1.0).