What is the difference between Gemini 3 Pro Preview and o1?

Gemini 3 Pro Preview is developed by Google AI while o1 is developed by OpenAI. You can compare their actual outputs across 51 challenges on Rival to see how they differ in practice.

Which is better, Gemini 3 Pro Preview or o1?

It depends on your use case. Gemini 3 Pro Preview and o1 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 51 challenges so you can judge which fits your needs best.

How can I compare Gemini 3 Pro Preview and o1 on Rival?

This page shows a side-by-side comparison of Gemini 3 Pro Preview and o1 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 Nov 2025

Gemini 3 Pro Previewvso1

Gemini 3 Pro Preview is the newer model, released after o1.

Gemini 3 Pro Preview and o1 compared across 51 shared prompts
Spec	Gemini 3 Pro Preview	o1
Input price	—	$15/M tokens
Output price	—	$60/M tokens
Context window	—	128K tokens
Weights	—	Closed
Free API (OpenRouter)	No	No
Released	Nov 2025	Dec 2024
SWE-bench Verified	76.2%	48.9%