Phidias is an innovative generative model that utilizes diffusion technology for reference-enhanced 3D generation. This model generates high-quality 3D assets from images, text, or 3D conditions and can complete the process in seconds. It significantly improves generation quality, generalization capability, and controllability through the integration of three key components: a Meta-ControlNet that dynamically adjusts condition strength, dynamic reference routing, and self-reference enhancement. Phidias provides a unified framework for 3D generation using text, images, and 3D conditions, with a variety of application scenarios.