# Gemini 2.5 Flash Preview 09 2025 vs GPT-5.5

As of Oct 14, 2026, Gemini 2.5 Flash Preview 09 2025 leads GPT-5.5 in 0 of 4 shared categories.

Gemini 2.5 Flash Preview 09 2025: price per 1M tokens is unset in the catalog.

GPT-5.5: $11.25 per 1M blended tokens.

Gemini 2.5 Flash Preview 09 2025: closed weights.

GPT-5.5: closed weights.

- Which to pick, General LLM: As of Oct 14, 2026, GPT-5.5 leads Gemini 2.5 Flash Preview 09 2025 in General LLM at #21 against #111.
- Which to pick, Reasoning: As of Oct 14, 2026, GPT-5.5 leads Gemini 2.5 Flash Preview 09 2025 in Reasoning at #25 against #112.
- Which to pick, Long context: As of Oct 14, 2026, GPT-5.5 leads Gemini 2.5 Flash Preview 09 2025 in Long context at #23 against #105.
- Which to pick, Factuality: As of Oct 14, 2026, GPT-5.5 leads Gemini 2.5 Flash Preview 09 2025 in Factuality at #5 against #88.

As of Oct 14, 2026, Gemini 2.5 Flash Preview 09 2025 is ranked #88 in Factuality (since Oct 14, 2026; sources LMArena Text factuality; methodology v1.0).

As of Oct 14, 2026, GPT-5.5 is a former state-of-the-art holder in General LLM (since Apr 28, 2026; sources LMArena Text (style-controlled, overall); methodology v1.0).