ByteDance has launched Seedream 4.0, an AI image generation tool that reportedly outperforms Google DeepMind's Nano Banana, known as Gemini 2.5 Flash Image, in key areas like prompt adherence and aesthetics according to internal benchmarks. Priced at $30 per 1,000 generations, Seedream 4.0 integrates the features of its predecessors, representing a notable development in image editing. Expert analysis calls it a “significant evolution,” enhancing ByteDance's competitive position in AI image solutions.