MODEL COMPARISON

GPT Image 1.5 vs Seedream 4.5: Which One Should You Use

The site has 31 and 19 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; Seedream 4.5 is better for In-image text and headline layout. 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.

Seedream 4.5

In-image text and headline layoutHolding subject, light and tone through editsFast batch generationE-commerce and poster layouts

When text must appear in the picture, quote the exact wording and specify position, size and weight. Phrase edit instructions as "keep A, replace only B" for the most reliable result.