MODEL COMPARISON

GPT Image 1.5 vs Nano Banana Pro: Which One Should You Use

The site has 31 and 709 reproducible cases for each, respectively. Below, we compare strengths, prompt writing, and final results side by side.

The Bottom Line

GPT Image 1.5 is better for Preserving faces and logos through edits; Nano Banana Pro is better for Consistent characters across multiple reference images. Running the same idea through both is usually worth it — they "listen" differently, so the prompt has to be adjusted to match.

Strengths & Prompt-Writing Comparison

GPT Image 1.5

Preserving faces and logos through editsRendering dense in-image textPhotographic texture and material feelFollowing long, paragraph-length instructions

It responds to a complete scene description: state the frame, camera position, lighting and materials in separate sentences instead of piling on style words. When editing, say explicitly "change only X, leave everything else as is" — that is where its preservation strength shows.

Nano Banana Pro

Consistent characters across multiple reference imagesIn-image text layout & renderingFollows long, structured prompts closelyFine-grained layout for e-commerce & infographics

Feel free to use structured formats (JSON, sectioned lists) when writing prompts — it parses hierarchical instructions much better than piles of short phrases. When text needs to appear in the image, write the exact wording in quotes.