AI Image Model Comparison - Choose the Best Generator Workflow

Compare AI image model workflows in BananaGen and choose Nano Banana 2, Nano Banana Pro, GPT Image 2, GPT Image 1.5, or GPT Image 1 for your next image.
Jun 11, 2026

Choosing the right AI image model is easier when you start from the image goal instead of the model name. BananaGen lets you move between fast drafts, polished commercial visuals, prompt-controlled layouts, and stable baseline generations without changing tools.

This page is a practical model comparison guide. If you already know what you want to create, open the BananaGen generator and start now.

Model selector

Pick the best AI image workflow before you spend credits

Use this page to decide whether your image needs speed, commercial polish, prompt control, or a stable baseline.

Start generating on BananaGen

Quick Comparison

WorkflowBest forStart here
Nano Banana 2Fast drafts, prompt exploration, reference edits, social visualsGenerate with Nano Banana 2
Nano Banana ProEcommerce, ads, portraits, landing page hero images, client-ready visualsGenerate with Nano Banana Pro
GPT Image 2Prompt-controlled layouts, ad concepts, text-aware compositions, thumbnailsGenerate with GPT Image 2
GPT Image 1.5High-quality text-to-image drafts, product concepts, portraits, social graphicsGenerate with GPT Image 1.5
GPT Image 1Stable baseline testing, early concept comparison, simple creative draftsGenerate with GPT Image 1

Choose by Goal

I want the fastest useful draft

Start with Nano Banana 2. It is the best first stop when the idea is still changing and you need to test several prompt directions quickly.

I need a polished commercial image

Use Nano Banana Pro when the output will be used in a store, ad, landing page, pitch deck, or client preview. Spend higher-value generations only after your prompt direction is clear.

I need stronger prompt control

Try GPT Image 2 when the composition has many instructions, layout constraints, or text-space requirements. It is useful for ad mockups, posters, thumbnails, and structured campaign visuals.

I want a stable comparison baseline

Use GPT Image 1 or GPT Image 1.5 to compare how the same prompt behaves before moving to a Pro-style final pass.

Credit-Smart Workflow

  1. Draft quickly with a fast model.
  2. Keep the strongest prompt direction.
  3. Switch to a higher-polish workflow only when the brief is clear.
  4. Use image-to-image when identity, product shape, or composition must stay stable.
  5. Save the winning prompt so future images stay consistent.

Text to Image or Image to Image?

Use Text to Image when you only have an idea. Use Image to Image when you already have a product photo, portrait, sketch, or composition that needs to be preserved.

FAQ

Which model should beginners use first?

Start with Nano Banana 2 for fast drafts. Once the prompt is working, compare a Pro-style generation for final quality.

Should I always use the newest model?

No. The best model depends on the job. Speed, prompt control, reference preservation, and commercial polish matter more than the newest name.

Can one prompt work across every model?

Usually yes, but outputs vary. Keep the subject and constraints stable, then adjust lighting, composition, and negative instructions after you see the first result.

Open BananaGen generator

Related pages: AI Image Models Hub, Nano Banana 2, Nano Banana Pro, GPT Image 2, and Free AI Image Generator.