Updated Dec 2025

FLUX 2 Max vs Seedream 4.5

FLUX 2 Max is the newer model, released after Seedream 4.5.

Hyperrealistic Portrait

One prompt, one photorealistic portrait. Skin, eyes, light.

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FLUX 2 Max

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Seedream 4.5

Which answer wins?

Price and specs

FLUX 2 Max and Seedream 4.5 compared across 17 shared prompts
Spec	FLUX 2 Max	Seedream 4.5
Parameters	Not disclosed	Not disclosed
Released	Dec 2025	Dec 2025

Common questions

What is the difference between FLUX 2 Max and Seedream 4.5?

FLUX 2 Max is developed by Black Forest Labs while Seedream 4.5 is developed by ByteDance. You can compare their actual outputs across 17 challenges on Rival to see how they differ in practice.

Which is better, FLUX 2 Max or Seedream 4.5?

It depends on your use case. FLUX 2 Max and Seedream 4.5 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 17 challenges so you can judge which fits your needs best.

How can I compare FLUX 2 Max and Seedream 4.5 on Rival?

This page shows a side-by-side comparison of FLUX 2 Max and Seedream 4.5 across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

FLUX 2 Max vs Seedream 4.5

Hyperrealistic Portrait

Price and specs

Common questions

What is the difference between FLUX 2 Max and Seedream 4.5?

Which is better, FLUX 2 Max or Seedream 4.5?

How can I compare FLUX 2 Max and Seedream 4.5 on Rival?

More comparisons

Against the newest arrivals

Same lab, same size, long tail

Model pages

FLUX 2 Max vs Seedream 4.5

Hyperrealistic Portrait

Price and specs

Common questions

What is the difference between FLUX 2 Max and Seedream 4.5?

Which is better, FLUX 2 Max or Seedream 4.5?

How can I compare FLUX 2 Max and Seedream 4.5 on Rival?

More comparisons

Against the newest arrivals

Same lab, same size, long tail

Model pages