What is the difference between Gemini 3 Pro Preview and GPT-5.2 Pro?

Gemini 3 Pro Preview is developed by Google AI while GPT-5.2 Pro is developed by OpenAI. You can compare their actual outputs across 31 challenges on Rival to see how they differ in practice.

Which is better, Gemini 3 Pro Preview or GPT-5.2 Pro?

It depends on your use case. Gemini 3 Pro Preview and GPT-5.2 Pro each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 31 challenges so you can judge which fits your needs best.

How can I compare Gemini 3 Pro Preview and GPT-5.2 Pro on Rival?

This page shows a side-by-side comparison of Gemini 3 Pro Preview and GPT-5.2 Pro across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

Updated Dec 2025

Gemini 3 Pro PreviewvsGPT-5.2 Pro

GPT-5.2 Pro is the newer model, released after Gemini 3 Pro Preview.

Gemini 3 Pro Preview and GPT-5.2 Pro compared across 31 shared prompts
Spec	Gemini 3 Pro Preview	GPT-5.2 Pro
Input price	—	$21/M tokens
Output price	—	$168/M tokens
Context window	—	400K tokens
Weights	—	Closed
Free API (OpenRouter)	No	No
Released	Nov 2025	Dec 2025
SWE-bench Verified	76.2%	80.0%