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FLUX 3 vs Seedream 5.5

ImageImage

Black Forest Labs · ByteDance · last verified 11/11/2026

Start with the conditional verdict, then compare pricing, parameters and official samples. The samples are not from the same prompt; the verdict only uses verifiable data.

Choose FLUX 3 if

  • Official description mentions Text rendering
  • Max resolution 4k
  • Vendor Black Forest Labs
$0.048/runText to image

Choose Seedream 5.5 if

  • Budget first: from $0.019/run
  • Max resolution 2k
  • Vendor ByteDance
$0.019/runText to image
Budget first: Seedream 5.5No absolute rankingDepends on your task

Specs

Only task, starting price, resolution, duration and explicit capabilities.

DimensionFLUX 3Seedream 5.5
TaskText to imageText to image
Starting price$0.048/run$0.019/run
Resolution1k / 2k / 4k1k / 1.5k / 2k
Aspect ratio21:9 / 2:1 / 16:9 / 3:2 / 7:5 / 4:3 +81:1 / 1:2 / 2:1 / 1:3 / 3:1 / 2:3 +9
Duration——
Explicit capabilitiesText rendering, Text to imageText to image

Explicit capabilities are only those stated in the official description. Nothing is inferred.

Pricing

Starting prices and default configurations. Refer to the official source for actual cost.

ModelUnit priceResolution / durationSourceVerified
FLUX 3$0.048/run1kwavespeed11/11/2026
Seedream 5.5$0.019/run1kwavespeed11/11/2026

Prices are official starting prices, excluding tax and FX. Refer to the official source.

Official samples

Each model’s official samples, not a same-prompt benchmark.

FLUX 3 sample: A surreal luxury fragrance campaign photographed like a real fashion editorial.

FLUX 3

Text to image

A surreal luxury fragrance campaign photographed like a real fashion editorial. A stylish male model with curly dark hair and a sharply tailored cream suit sits casually on the curved peel of an enormous freshly cut orange. His posture is relaxed and confident, one hand resting beside him, his gaze directed just past the camera. On a small travertine pedestal in the foreground stands an amber glass perfume bottle with a crisp minimalist label reading “SOL” and smaller text reading “EAU DE PARFUM”. The giant orange reveals translucent citrus pulp, tiny droplets, and richly textured peel. Soft botanical shadows fall across a pale terracotta studio background. Warm side lighting, elegant negative space, realistic skin texture, subtle film grain, sophisticated commercial art direction.

Text renderingText to image
View model
Seedream 5.5 sample: A young woman reading a book on a sunlit park bench in autumn, golden leaves on

Seedream 5.5

Text to image

A young woman reading a book on a sunlit park bench in autumn, golden leaves on the ground, soft afternoon light, natural candid photo, photorealistic, shot on 50mm

Text to image
View model

Related comparisons

Switch to another model of the same type.

FAQ

Which is cheaper, FLUX 3 or Seedream 5.5?
FLUX 3 starts at $0.048/run, and Seedream 5.5 starts at $0.019/run. By starting price, Seedream 5.5 is lower. Actual cost also varies with resolution, duration and retries.
Does FLUX 3 support Chinese text?
The official description mentions text rendering. Chinese layout should still be validated with your actual title and pricing copy before production.
Does Seedream 5.5 support Chinese text?
The official description does not explicitly list Chinese text capability. Validate with your actual copy before making a Chinese poster.
Were these samples generated from the same prompt?
The page shows each model’s official samples. Prompts and parameters are defined by the original page, not a same-prompt benchmark. A same-prompt benchmark requires real API calls and will be labeled in the task gallery once the data is ready.