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MODEL COMPARISON

GPT Image 1.5 vs Ideogram 4: 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; Ideogram 4 is better for Poster and headline typography. 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.

Ideogram 4

Poster and headline typographyGraphic design and brand visualsCharacter sheets and multi-view turnaroundsAccurate rendering of complex text
Lock the wording in quotes, then describe the type's character (sans, handwritten, serif) and the hierarchy of the layout. Don't push more than three blocks of text into one image — they start crowding each other.

GPT Image 1.5 Cases

Does This Calavera Face Paint Actually Hold UpDoes This Calavera Face Paint Actually Hold UpThis Shot's Strength Is Not Telling a StoryThis Shot's Strength Is Not Telling a StoryHalf a Face Fading Into NavyHalf a Face Fading Into NavyBeach Selfies — the Cat Learned FirstBeach Selfies — the Cat Learned FirstCables Wound Into a Streak of Violet-BlueCables Wound Into a Streak of Violet-BlueA Coffee Mug Tipped Over on a Dark TableA Coffee Mug Tipped Over on a Dark Table

Ideogram 4 Cases

Tropical Dusk at the End of the DockTropical Dusk at the End of the DockCrack the Coconut, and the Beach Picnic BeginsCrack the Coconut, and the Beach Picnic BeginsThe Glance Back, Right as the Dress LiftsThe Glance Back, Right as the Dress LiftsPool Level, Roughly Equal to the HorizonPool Level, Roughly Equal to the Horizon
All GPT Image 1.5 Cases All Ideogram 4 Cases
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