Stable Diffusion API is a fast and affordable AI image generation API with over 10,000 models to choose from. The fastest generation speed is only 2 seconds, and a standard image costs only $0.0015. High-frequency users can enjoy a 15% discount. You can also add your own models to avoid GPU maintenance. Stable Diffusion API provides comprehensive API documentation, online demos, and support for using SDXL 0.9/1.0. Its advantages include efficient feature discovery, rapid generation, low cost, diverse model selection, and keeping the latest popular and trending models updated.