AI Image & Video Webapp

I am building a browser-based platform, similar in spirit to GROK AI, that lets users create both still images and full-motion videos with generative AI. The workflow must feel seamless: type a prompt, receive an AI-generated image, extend that into an animated sequence, then publish... (Budget: $250 - $750 USD, Jobs: AI App Development, AI Workflow Automation, Backend Development, Frontend Development)