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MODEL COMPARISON

Seedream 4.0 vs Seedream 4.5: Which One Should You Use

The site has 22 and 19 reproducible cases for each, respectively. Below, we compare strengths, prompt writing, and final results side by side.

The Bottom Line

Seedream 4.0 is better for Native Chinese prompt comprehension; 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

Seedream 4.0

Native Chinese prompt comprehensionProduct and still-life photographyEveryday scenes and festive subjectsSteady composition and color
Write in Chinese directly. Naming concrete materials and light directions (frosted glass, side backlight, linen weave) works far better than adjectives like "premium feel".

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.

Seedream 4.0 Cases

Bony Fingers on a Violin, Purple Smoke Through the TreesBony Fingers on a Violin, Purple Smoke Through the TreesThis Red Mug Basically Matches His CoatThis Red Mug Basically Matches His CoatEven Santa Has a Shift That DayEven Santa Has a Shift That DayThis Egg-Growing Plant Is Kind of UnsettlingThis Egg-Growing Plant Is Kind of UnsettlingThis 2026 Doorway Is Having a Good DayThis 2026 Doorway Is Having a Good DayThe Letters H and I, Made of FoamThe Letters H and I, Made of Foam

Seedream 4.5 Cases

Scaled-Tail Hoop Acrobat in a Circus TentScaled-Tail Hoop Acrobat in a Circus TentGold Foil on Ivory for a Black Perfume Bottle LabelGold Foil on Ivory for a Black Perfume Bottle LabelPerched on a Translucent Jellyfish, Her Gown Glows TooPerched on a Translucent Jellyfish, Her Gown Glows TooPaper's Not Done, but This Face Took a Selfie FirstPaper's Not Done, but This Face Took a Selfie FirstThat Polo Collar Holds Its Shape Just RightThat Polo Collar Holds Its Shape Just RightFace Locked, Everything Else RepaintedFace Locked, Everything Else Repainted
All Seedream 4.0 Cases All Seedream 4.5 Cases
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