ByteDance launches Seedream 5.5: pixel-perfect multi-round editing, 60% cheaper
火山引擎 · wechat · 2026-11-09
ByteDance's Volcano Engine released Seedream 5.5, an image creation model with:
- Pixel-level controllable editing: purpose-trained consistency keeps subjects, composition, and lighting unchanged outside edited regions across 100+ consecutive edit rounds (claimed ΔRGB=0 for untouched areas).
- Native RGBA output: generates images with alpha channels and splits them into up to 100 transparent layers, usable directly in layout, compositing, and 2.5D game visuals without manual masking.
- Text and realism: denser small-text rendering with more accurate complex glyphs; improved lighting, materials, and skin texture with less over-shine and blowout.
- Pricing: billed per input+output image (text tokens free) at ¥0.28 per 2K square edit — 60% cheaper and 40% faster than Seedream 5.0 Pro. API ships on Volcano Ark this week; consumer access via Jimeng and Doubao Work, which can chain Skills like app generation and social-media marketing graphics.
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