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Nano Banana 2 vs Seedream 4.5: 5 Prompt Comparison

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Nano Banana 2 vs Seedream 4.5: 5 prompt comparison

Nano Banana 2 vs Seedream 4.5: this comparison runs five identical prompts. The goal: test fidelity, edit consistency, and color handling. Each run uses 2K 1:1 outputs.

Quick specs

Model	Provider	Modes
Nano Banana 2	Google	Image-to-image, text-to-image, multi-image mixing
Seedream 4.5	ByteDance	Text-to-image, image-to-image, multi-input

Test setup

Resolution: 2K
Aspect ratio: 1:1
Max images: 1 per run
Watermark: off

Prompts

Photoreal product shot: wireless earbuds in an open charging case on wet black stone.
Rainy neon crosswalk at night, single umbrella person, film grain.
Retro sci-fi book cover, 1970s style, astronaut silhouette and giant planet (no text).
Sushi platter on dark wood, steam, soft restaurant lighting.
Chalkboard sign with the word HELLO in neat white chalk, warm lighting.

Gallery (Nano Banana 2 then Seedream 4.5)

1) Earbuds on wet stone

Nano Banana 2 earbuds on wet stone — Nano Banana 2 — Prompt used: Photoreal product photo of wireless earbuds in an open charging case on wet black stone. Soft rim light. Realistic water droplets. Shallow depth of field. Ultra detailed.

Seedream 4.5 earbuds on wet stone — Seedream 4.5 — same prompt.

2) Rainy neon crosswalk

Nano Banana 2 rainy neon crosswalk — Nano Banana 2 — Prompt used: Cinematic street photo at night in heavy rain. Neon signs reflect on wet asphalt. A crosswalk with a single umbrella person. 35mm film grain.

Seedream 4.5 rainy neon crosswalk — Seedream 4.5 — same prompt.

3) Retro sci-fi cover

Nano Banana 2 retro sci-fi cover — Nano Banana 2 — Prompt used: Retro sci-fi book cover illustration, 1970s style, astronaut silhouette and a giant planet, bold colors, grain texture, high contrast. No words.

Seedream 4.5 retro sci-fi cover — Seedream 4.5 — same prompt.

4) Sushi platter

Nano Banana 2 sushi platter — Nano Banana 2 — Prompt used: Photoreal food photo of a sushi platter on a dark wooden table. Soft restaurant lighting. Steam and freshness.

Seedream 4.5 sushi platter — Seedream 4.5 — same prompt.

5) Chalkboard HELLO

Nano Banana 2 chalkboard HELLO — Nano Banana 2 — Prompt used: A clean chalkboard sign on a cafe wall. Write the word HELLO in centered white chalk, neat handwriting. Soft warm lighting. Realistic chalk texture.

Seedream 4.5 chalkboard HELLO — Seedream 4.5 — same prompt.

Summary

Nano Banana 2 delivers strong character consistency when using reference images.
Seedream 4.5 performs well on texture and natural lighting in product shots.
Use single-camera-move prompts for cleaner results.

CTA

Image demos: https://imageat.com

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