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MODEL COMPARISON

Seedream 4.0 vs Seedream 4.5: Which One Should You Use

The site has 21 and 15 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

This 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 FoamA Tiny Train Rides Into Layer CakeA Tiny Train Rides Into Layer Cake

Seedream 4.5 Cases

That Polo Collar Holds Its Shape Just RightThat Polo Collar Holds Its Shape Just RightFace Locked, Everything Else RepaintedFace Locked, Everything Else RepaintedThis Mirror Reflects a Different WorldThis Mirror Reflects a Different WorldThis Sunset Is Doing the Job of a Key LightThis Sunset Is Doing the Job of a Key LightAn Alley Where the Light Grows Out of SignageAn Alley Where the Light Grows Out of SignageHalf Skin, Half WireframeHalf Skin, Half Wireframe
All Seedream 4.0 Cases All Seedream 4.5 Cases
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