What is the difference between GPT Image 2.5 Sunburst and Nano Banana 2?

GPT Image 2.5 Sunburst is developed by OpenAI while Nano Banana 2 is developed by Google AI. You can compare their actual outputs across 18 challenges on Rival to see how they differ in practice.

Which is better, GPT Image 2.5 Sunburst or Nano Banana 2?

It depends on your use case. GPT Image 2.5 Sunburst and Nano Banana 2 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 18 challenges so you can judge which fits your needs best.

How can I compare GPT Image 2.5 Sunburst and Nano Banana 2 on Rival?

This page shows a side-by-side comparison of GPT Image 2.5 Sunburst and Nano Banana 2 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 Sep 2026

GPT Image 2.5 SunburstvsNano Banana 2

GPT Image 2.5 Sunburst is the newer model, released after Nano Banana 2.

GPT Image 2.5 Sunburst and Nano Banana 2 compared across 18 shared prompts
Spec	GPT Image 2.5 Sunburst	Nano Banana 2
Input price	$5/M tokens	—
Output price	$30/M tokens	—
Parameters	Not disclosed	Not disclosed
Weights	Closed	Closed
Free API (OpenRouter)	No	No
Released	Sep 2026	Feb 2026