# Gemini 3.1 Pro Preview vs GPT-6 Astra

As of Oct 15, 2026, Gemini 3.1 Pro Preview leads GPT-6 Astra in 4 of 9 shared categories: General LLM, Reasoning, Long context, and Factuality.

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

GPT-6 Astra: $20 per 1M blended tokens.

Gemini 3.1 Pro Preview: closed weights.

GPT-6 Astra: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, Gemini 3.1 Pro Preview leads GPT-6 Astra in General LLM at #15 against #26.
- Which to pick, Reasoning: As of Oct 15, 2026, Gemini 3.1 Pro Preview leads GPT-6 Astra in Reasoning at #14 against #24.
- Which to pick, Math: As of Oct 15, 2026, GPT-6 Astra leads Gemini 3.1 Pro Preview in Math at #1 against #3.
- Which to pick, Science: As of Oct 15, 2026, GPT-6 Astra leads Gemini 3.1 Pro Preview in Science at #2 against #7.
- Which to pick, Coding › Web dev: As of Oct 15, 2026, GPT-6 Astra leads Gemini 3.1 Pro Preview in Coding › Web dev at #2 against #63.
- Which to pick, Long context: As of Oct 15, 2026, Gemini 3.1 Pro Preview leads GPT-6 Astra in Long context at #12 against #25.
- Which to pick, Vision: As of Oct 15, 2026, GPT-6 Astra 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 Astra in Factuality at #21 against #29.
- Which to pick, Abstraction (ARC): As of Oct 15, 2026, GPT-6 Astra 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 Astra is state of the art in Math (since Sep 28, 2026; sources Humanity's Last Exam; methodology v1.0).