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Image model comparison · 2 models · Updated Nov 2, 2026

Nano Banana vs Seedream 4.0

Preferred for text to image: Nano Banana · Preferred for image editing: Nano Banana · Newest: Seedream 4.0. Quality scores are blind human-preference votes; specs and prices come from each lab’s listings.

  1. Google

    Nano Banana

    Released Aug 26, 2025Deprecated

    • Text to image
    • Image editing
    • Arena1,291
    • From—
    • Max size—
    Full specs Remove Nano Banana

  2. ByteDance Seed

    Seedream 4.0

    Released Sep 9, 2025

    • Text to image
    • Image editing
    • Arena1,267
    • From—
    • Max size—
    Full specs Remove Seedream 4.0

  3. Add a model

    Make it a three-way comparison.

01 — At a glance

Where they differ

Quality is the arena score from blind, side-by-side human votes. Price, length and resolution come from each lab’s own listings.

  • Preferred for text to imageNano BananaNano Banana 1,149 (#36) · Seedream 4.0 1,139 (#40) — blind human votes
  • Preferred for image editingNano BananaNano Banana 1,291 (#33) · Seedream 4.0 1,267 (#34) — blind human votes
  • NewestSeedream 4.0Nano Banana Aug 26, 2025 · Seedream 4.0 Sep 9, 2025
  • Widest inputsSame inputsNano Banana: Text prompts, Reference images · Seedream 4.0: Text prompts, Reference images
  • Image editingBoth edit imagesTakes a reference image as input: Nano Banana yes · Seedream 4.0 yes
  • Self-hostingNo open weightsBoth are available only through APIs and apps
  • Most API hostsNano BananaNano Banana: 12 · Seedream 4.0: 1
02 — Side by side

Every spec in one table

Dashes mean the data is not published.

Nano Banana vs Seedream 4.0 specifications side by side
SpecificationNano BananaGoogleSeedream 4.0ByteDance Seed
Quality (blind human votes)
Text to image arenaElo-style score · higher is better1,149 ±2#36 of 82 · 907,282 votes (best)1,139 ±7#40 of 82 · 12,563 votes
Image editing arenaElo-style score · higher is better1,291 ±2#33 of 61 · 11,448,539 votes (best)1,267 ±7#34 of 61 · 210,031 votes
Output
ProducesImagesImages
Inputs
Text promptsYesYes
Reference images (editing)YesYes
Access
WeightsProprietaryProprietary
API model IDgemini-2.5-flash-image—
API hosts12 (best)1
ReleasedAug 26, 2025Sep 9, 2025
03 — Questions

Which should you choose?

Which is better, Nano Banana or Seedream 4.0?

For text to image, voters prefer Nano Banana (Nano Banana 1,149 (#36) · Seedream 4.0 1,139 (#40)). For image editing, voters prefer Nano Banana (Nano Banana 1,291 (#33) · Seedream 4.0 1,267 (#34)). Arena scores come from blind, side-by-side human votes on the same prompts; when the gap is inside both models’ error margins we call it a tie. Test your own prompts before you commit.

What is the difference between Nano Banana and Seedream 4.0?

Nano Banana is an image model from Google (Aug 26, 2025), taking text prompts and reference images and producing images. Seedream 4.0 is an image model from ByteDance Seed (Sep 9, 2025), taking text prompts and reference images and producing images.

Which is newer?

Nano Banana Aug 26, 2025; Seedream 4.0 Sep 9, 2025.

Which can edit an existing image?

Takes a reference image as input: Nano Banana yes; Seedream 4.0 yes.

Can I run any of these on my own hardware?

No open weights. Both are available only through APIs and apps.

04 — Keep comparing

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