# Claude Opus 5.5 vs Gemini 3 Pro

As of Oct 15, 2026, Claude Opus 5.5 leads Gemini 3 Pro in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.

Claude Opus 5.5: $8.000000000000002 per 1M blended tokens.

Gemini 3 Pro: price per 1M tokens is unset in the catalog.

Claude Opus 5.5: closed weights.

Gemini 3 Pro: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, Claude Opus 5.5 leads Gemini 3 Pro in General LLM at #2 against #16.
- Which to pick, Reasoning: As of Oct 15, 2026, Claude Opus 5.5 leads Gemini 3 Pro in Reasoning at #1 against #22.
- Which to pick, Coding › Web dev: As of Oct 15, 2026, Claude Opus 5.5 leads Gemini 3 Pro in Coding › Web dev at #1 against #59.
- Which to pick, Long context: As of Oct 15, 2026, Claude Opus 5.5 leads Gemini 3 Pro in Long context at #1 against #21.
- Which to pick, Factuality: As of Oct 15, 2026, Claude Opus 5.5 leads Gemini 3 Pro in Factuality at #1 against #10.

As of Oct 15, 2026, Claude Opus 5.5 is tied for state of the art in Reasoning (since Oct 2, 2026; sources LMArena Text (style-controlled, hard prompts); methodology v1.0).

As of Oct 15, 2026, Gemini 3 Pro is a former state-of-the-art holder in General LLM (since Nov 17, 2025; sources LMArena Text (style-controlled, overall); methodology v1.0).