# Gemini 3.1 Pro Preview vs GPT-5.6 Sol

As of Oct 15, 2026, Gemini 3.1 Pro Preview leads GPT-5.6 Sol in 4 of 8 shared categories: General LLM, Science, Long context, and Abstraction (ARC).

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

GPT-5.6 Sol: $8.000000000000002 per 1M blended tokens.

Gemini 3.1 Pro Preview: closed weights.

GPT-5.6 Sol: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, Gemini 3.1 Pro Preview leads GPT-5.6 Sol in General LLM at #15 against #17.
- Which to pick, Reasoning: As of Oct 15, 2026, GPT-5.6 Sol leads Gemini 3.1 Pro Preview in Reasoning at #12 against #14.
- Which to pick, Science: As of Oct 15, 2026, Gemini 3.1 Pro Preview leads GPT-5.6 Sol in Science at #7 against #13.
- Which to pick, Coding › Web dev: As of Oct 15, 2026, GPT-5.6 Sol leads Gemini 3.1 Pro Preview in Coding › Web dev at #23 against #63.
- Which to pick, Long context: As of Oct 15, 2026, Gemini 3.1 Pro Preview leads GPT-5.6 Sol in Long context at #12 against #13.
- Which to pick, Vision: As of Oct 15, 2026, GPT-5.6 Sol leads Gemini 3.1 Pro Preview in Vision at #3 against #25.
- Which to pick, Factuality: As of Oct 15, 2026, GPT-5.6 Sol leads Gemini 3.1 Pro Preview in Factuality at #15 against #21.
- Which to pick, Abstraction (ARC): As of Oct 15, 2026, Gemini 3.1 Pro Preview leads GPT-5.6 Sol in Abstraction (ARC) at #2 against #3.

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-5.6 Sol is near state of the art, rank #3 in Vision (since Oct 15, 2026; sources GDP.pdf; methodology v1.0).