What is the difference between GPT Image 1.5 and GPT Image 2?

Both are developed by OpenAI but target different use cases. You can compare their actual outputs across 19 challenges on Rival to see how they differ in practice.

Which is better, GPT Image 1.5 or GPT Image 2?

It depends on your use case. GPT Image 1.5 and GPT Image 2 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 19 challenges so you can judge which fits your needs best.

How can I compare GPT Image 1.5 and GPT Image 2 on Rival?

This page shows a side-by-side comparison of GPT Image 1.5 and GPT Image 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 Apr 2026

GPT Image 1.5vsGPT Image 2

GPT Image 2 is the newer model, released after GPT Image 1.5.

GPT Image 1.5 and GPT Image 2 compared across 19 shared prompts
Spec	GPT Image 1.5	GPT Image 2
Parameters	Not disclosed	Not disclosed
Released	Dec 2025	Apr 2026

Our Verdict

GPT Image 1.5

GPT Image 2

Not enough votes to call it. On the specs, nothing separates them.

GPT Image 2 takes Image Generation.

Too close to call

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What is the difference between GPT Image 1.5 and GPT Image 2?

Which is better, GPT Image 1.5 or GPT Image 2?

How can I compare GPT Image 1.5 and GPT Image 2 on Rival?

More comparisons

Against the newest arrivals

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What we learned reading every model

Common questions

What is the difference between GPT Image 1.5 and GPT Image 2?

Which is better, GPT Image 1.5 or GPT Image 2?

How can I compare GPT Image 1.5 and GPT Image 2 on Rival?

More comparisons

Against the newest arrivals

Same lab, same size, long tail

Model pages