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Nano Banana 2.1 vs Seedream 5.0 Pro: specs and price

Nano Banana 2.1 — resolutions: 1K / 2K / 4K.

When to choose Nano Banana 2.1 and when Seedream 5.0 Pro

Nano Banana 2.1

  • Resolutions: 1K / 2K / 4K vs 1K / 2K for Seedream 5.0 Pro
  • Prompt limit: 20,000 characters vs 5,000 characters for Seedream 5.0 Pro
  • Aspect ratios: 15 vs 8 for Seedream 5.0 Pro

Seedream 5.0 Pro

  • The table shows no measurable edge for Seedream 5.0 Pro: judge it by the result on your own scene.

Key differences

Nano Banana 2.1: The new Nano Banana: up to 10 references, 15 aspect ratios and quality up to 4K.
Seedream 5.0 Pro: Build a portrait or product scene from references, with format and input-photo count in mind.

Specifications

SpecNano Banana 2.1Seedream 5.0 Pro
Generation modesfrom text / photo editingfrom text / photo editing
Input photosup to 10up to 10
Resolutions1K / 2K / 4K1K / 2K
Aspect ratios9:16 / 16:9 / 1:1 / auto / 2:3 / 3:2 / 1:4 / 4:1 / 3:4 / 4:3 / 4:5 / 5:4 / 1:8 / 8:1 / 21:99:16 / 16:9 / 1:1 / 4:3 / 3:4 / 3:2 / 2:3 / 21:9
Prompt limit20,000 characters5,000 characters
Price, 1 image · 1K— coins— coins

Price at the same settings

Quality
Nano Banana 2.1 —
Seedream 5.0 Pro —

What to compare visually

For a fair A/B test, use the same prompt, aspect ratio and references. Inspect more than overall style: object preservation, geometry, faces and hands, fine detail, text in the frame and unintended changes during editing.

What to inspect with Nano Banana 2.1

The new Nano Banana: up to 10 references, 15 aspect ratios and quality up to 4K.

  • From text or from photos: 1 to 10 JPG, PNG or WebP images, up to 30 MB each.
  • 1K, 2K or 4K; 15 aspect ratios, including Auto and very narrow or wide ones.
  • Ten references is a ceiling, not a recommendation for every task.
  • More pixels do not fix mixed-up characters or a wrong product shape.

What to inspect with Seedream 5.0 Pro

Build a portrait or product scene from references, with format and input-photo count in mind.

  • Text or up to 10 photos; 1, 2 or 4 results.
  • 1K and 2K across all eight aspect ratios, including 21:9.
  • The first input photo is included in the base calculation; subsequent photos cost extra.
  • Pro does not mean the highest resolution across every Seedream version.

How to run a fair comparison

  • Give both models one prompt, one aspect ratio and, for editing tests, the same source photo.
  • Look at the small things: hands, small text, product edges and logos fail differently in every model.
  • Generate at least three variants per model: one picture shows one seed, not the usual quality.
  • Compare cost at the resolution you will actually publish, not at each model's cheapest setting.

Sources

Prices, availability and specifications come from the Mixer AI catalog. This is not an independent test: try both models on the same task before choosing.

What we compare

FAQ

Which is cheaper: Nano Banana 2.1 or Seedream 5.0 Pro?

Price, 1 image · 1K: the prices of Nano Banana 2.1 and Seedream 5.0 Pro are in the comparison table and always match the current tariff. The total depends on your settings: the price of the chosen options is shown in the interface before you run.

How does Nano Banana 2.1 differ from Seedream 5.0 Pro?

Nano Banana 2.1 — resolutions: 1K / 2K / 4K.

How should I compare Nano Banana 2.1 and Seedream 5.0 Pro fairly?

Give both models the same prompt, aspect ratio and source photo, generate three variants each and compare details: hands, text, object edges. Compare price at the resolution you will publish.

Are both models available in Mixer AI?

Yes. Both models are in the Mixer AI image catalog; the launch button on the page opens Canvas on a computer and the Studio on a phone. The page exists only for models in the current catalog.

Which model is better?

There is no single winner. First rule out the model that does not accept the inputs you need (references, editing) or the resolution you need, then compare results on your own task. The table highlights only measurable differences.

See also