# Claude Opus 4.8 vs Gemini 3.1 Pro Preview

As of Oct 14, 2026, Claude Opus 4.8 leads Gemini 3.1 Pro Preview in 4 of 8 shared categories: Reasoning, Coding › Web dev, Long context, and Vision.

Claude Opus 4.8: $10 per 1M blended tokens.

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

Claude Opus 4.8: closed weights.

Gemini 3.1 Pro Preview: closed weights.

- Which to pick, General LLM: As of Oct 14, 2026, Gemini 3.1 Pro Preview leads Claude Opus 4.8 in General LLM at #15 against #20.
- Which to pick, Reasoning: As of Oct 14, 2026, Claude Opus 4.8 leads Gemini 3.1 Pro Preview in Reasoning at #10 against #14.
- Which to pick, Science: As of Oct 14, 2026, Gemini 3.1 Pro Preview leads Claude Opus 4.8 in Science at #7 against #27.
- Which to pick, Coding › Web dev: As of Oct 14, 2026, Claude Opus 4.8 leads Gemini 3.1 Pro Preview in Coding › Web dev at #33 against #58.
- Which to pick, Long context: As of Oct 14, 2026, Claude Opus 4.8 leads Gemini 3.1 Pro Preview in Long context at #10 against #12.
- Which to pick, Vision: As of Oct 14, 2026, Claude Opus 4.8 leads Gemini 3.1 Pro Preview in Vision at #13 against #25.
- Which to pick, Factuality: As of Oct 14, 2026, Gemini 3.1 Pro Preview leads Claude Opus 4.8 in Factuality at #18 against #21.
- Which to pick, Abstraction (ARC): As of Oct 14, 2026, Gemini 3.1 Pro Preview leads Claude Opus 4.8 in Abstraction (ARC) at #2 against #12.

As of Oct 14, 2026, Claude Opus 4.8 is a former state-of-the-art holder in Coding › Web dev (since Jun 5, 2026; sources LMArena WebDev; methodology v1.0).

As of Oct 14, 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).