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MODEL COMPARISON
GPT Image 1.5 vs HiDream I1: Which One Should You Use
The site has 24 and 4 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; HiDream I1 is better for Photoreal and illustration alike. 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
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.
HiDream I1
It reads structured descriptions well — write subject, environment, lighting and style as separate clauses. Keep style words to two or three; stack more and they fight each other.
GPT Image 1.5 Cases
Does This Calavera Face Paint Actually Hold Up
This Shot's Strength Is Not Telling a Story
Half a Face Fading Into Navy
Beach Selfies — the Cat Learned First
Cables Wound Into a Streak of Violet-Blue
A Coffee Mug Tipped Over on a Dark Table



