Seedream 4.0: ByteDance’s pro AI image generator challenges Google on speed and quality
ByteDance unveiled Seedream 4.0, a pro-grade AI image generator that outputs 2K images in 1.8 seconds and creates nine consistent images at once. Built on a mixture-of-experts architecture, it targets agencies and studios with batch generation, robust editing, and identity consistency from reference images. Priced at $30 for 1,000 images, it beat Google’s Gemini 2.5 Flash (Nano Banana) on benchmark tests.