Which should you pick?
Nano Banana 2 and ByteDance Seedream 4 start at the same 3 credits for a complete generation.
At their most expensive settings the gap widens: Nano Banana 2 tops out at 6 credits a job versus 3.
Nano Banana 2 supports more aspect ratios (15: 8:1, 4:1, 21:9, 16:9, 3:2, 4:3, 5:4, 1:1, 4:5, 3:4, 2:3, 9:16, 1:4, 1:8, auto), giving it more format flexibility.
What a job costs
Nano Banana 2
3-6 credits
It bills a flat rate per generation.
- Price3 credits
ByteDance Seedream 4
3 credits
It bills a flat rate per generation.
- Price3 credits
All figures are Versely credits. Your plan's credit allowance is on the pricing page.
Spec comparison
| Spec | Nano Banana 2 | ByteDance Seedream 4 |
|---|---|---|
| Provider | ByteDance | |
| Cost per job | 3-6 credits | 3 credits |
| Billing | a flat rate per generation | a flat rate per generation |
| Max resolution | 4K | 4K |
| Aspect ratios | 8:1, 4:1, 21:9, 16:9, 3:2, 4:3, 5:4, 1:1, 4:5, 3:4, 2:3, 9:16, 1:4, 1:8, auto | 1:1, 4:3, 3:4, 16:9, 9:16, 3:2, 2:3, 21:9 |
| Durations | — | — |
| Frame rates | — | — |
| Qualities | 1K, 2K, 4K | 1K, 2K, 4K |
| Requires starting image | No | No |
| Accepts video input | No | No |
| Reference images | Up to 14 | Up to 10 |
| Leaderboard | #7 in text to image | Unranked |
| Released | Feb 26, 2026 | Sep 9, 2025 |
What each one does that the other doesn't
Only Nano Banana 2
image to image, edit image, ultra fast, lightweight
Only ByteDance Seedream 4
creative, advanced, artistic
Both list: text to image, text to image.
Leaderboard positions
Versely ranks each capability on its own leaderboard, so a position is only comparable between two models within the same row.
Nano Banana 2
- Text to image#7
ByteDance Seedream 4
Not on a Versely leaderboard yet.
Full Nano Banana 2 spec sheet →
Ultra-fast lightweight image generation with Nano Banana 2 for rapid creative iteration
Full ByteDance Seedream 4 spec sheet →
Seedream 4 — the previous-generation ByteDance image model. Still a capable, lower-cost text-to-image pick when you don't need 4.5's stronger prompt comprehension.
More comparisons
Frequently asked questions
Which is cheaper, Nano Banana 2 or ByteDance Seedream 4?+
Neither — both start at 3 credits for a complete generation on Versely.
What can Nano Banana 2 do that ByteDance Seedream 4 can't, or vice versa?+
Only Nano Banana 2 lists image to image, edit image, ultra fast, lightweight. Only ByteDance Seedream 4 lists creative, advanced, artistic. Both list text to image, text to image.
How do Nano Banana 2 and ByteDance Seedream 4 bill?+
Nano Banana 2 bills a flat rate per generation. ByteDance Seedream 4 bills a flat rate per generation. Both are charged in Versely credits.
Try both inside Versely
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