# Gemini 3 Pro vs GPT-5.5 Instant

As of Oct 15, 2026, Gemini 3 Pro leads GPT-5.5 Instant in 4 of 4 shared categories: General LLM, Reasoning, Long context, and Factuality.

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

GPT-5.5 Instant: price per 1M tokens is unset in the catalog.

Gemini 3 Pro: closed weights.

GPT-5.5 Instant: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, Gemini 3 Pro leads GPT-5.5 Instant in General LLM at #16 against #36.
- Which to pick, Reasoning: As of Oct 15, 2026, Gemini 3 Pro leads GPT-5.5 Instant in Reasoning at #23 against #38.
- Which to pick, Long context: As of Oct 15, 2026, Gemini 3 Pro leads GPT-5.5 Instant in Long context at #24 against #46.
- Which to pick, Factuality: As of Oct 15, 2026, Gemini 3 Pro leads GPT-5.5 Instant in Factuality at #10 against #78.

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).

As of Oct 15, 2026, GPT-5.5 Instant is ranked #36 in General LLM (since Oct 15, 2026; sources LMArena Text (style-controlled, overall); methodology v1.0).