Seedream 4.0 is a multimodal AI-powered image model developed by ByteDance, designed for ultra-fast 2K image generation and editing. It combines text-to-image, image editing, and enhancement in a single platform, enabling professionals, designers, and creators to generate high-quality visuals rapidly. Its powerful batch generation and multi-reference capabilities support complex projects with style coherence, catering to both English and Chinese language prompts for a global audience.