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2026/9/24 19:06 (UTC+8) · New Model · ByteDance 🚀 seedream-5-0-flash-260915 is live at $0.018 per request, the cheapest in the series BytePlus’s new fast image model focuses on speed, layout and low cost. In our launch-day tests, text-to-image took 15–20 seconds and all three lines of a Chinese poster rendered correctly. Reference images are free: 1 and 10 reference images were each billed $0.018. Pricing matches the provider, and top-up bonuses bring it roughly 9%–17% below the official price. Before integrating, note:
  • sequential_image_generation and stream are not supported; any value returns 400
  • Without watermark: false, images carry an “AI generated” watermark
  • Transparent assets need layer_decomposition, which is billed per output image, often a dozen or more
Full write-up: Seedream 5.0 Flash Is Live. Parameters: Seedream overview.
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