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MODEL COMPARISON

HiDream I1 vs Seedream 4.0: Which One Should You Use

The site has 4 and 21 reproducible cases for each, respectively. Below, we compare strengths, prompt writing, and final results side by side.

The Bottom Line

HiDream I1 is better for Photoreal and illustration alike; Seedream 4.0 is better for Native Chinese prompt comprehension. 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

HiDream I1

Photoreal and illustration alikeFast generationOpen-source, self-hostable and tunableConcept boards and batch drafts
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.

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".

HiDream I1 Cases

These Cat-Eye Frames Get the Proportions RightThese Cat-Eye Frames Get the Proportions RightThe Volcano Painting That Spilled Into the Living RoomThe Volcano Painting That Spilled Into the Living RoomNothing But the Tiara, on WhiteNothing But the Tiara, on WhiteThe Pizza Walking Its Stroller Across the CrosswalkThe Pizza Walking Its Stroller Across the Crosswalk

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
All HiDream I1 Cases All Seedream 4.0 Cases
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