Highly Realistic 18+ AI Companion

I am building an adult-only website and need a photorealistic AI girl who can greet visitors and hold natural conversations across three channels: text chat, real-time voice, and live-rendered video. The avatar must look truly lifelike—subtle facial micro-expressions, accurate lip-sync, smooth body movement, and lighting that feels as if she is sitting in front of the user.

Your job is to deliver the full experience, hosted on the web and ready to embed in my pages with a simple script tag or iframe. I expect the conversational layer (LLM or proprietary NLP), voice synthesis and recognition, and the real-time 3-D or neural-render pipeline to work together seamlessly, so a user can switch from typing to talking to seeing her respond on camera without refreshing the page.

Please include:
• A secure, documented API for the text and voice chat.
• Browser-friendly rendering (WebGL / Three.js, WebGPU, or comparable) for the highly realistic avatar, complete with shaders, hair, and cloth simulation if needed.
• A lightweight backend (Node, Python, or similar) that orchestrates the language model, TTS, STT, and streaming video.
• Basic web UI elements: chat box, mute/unmute, and fullscreen toggle.
• Clear instructions so I can deploy on my own server and update her personality or appearance later.

I value efficient code, fast load times, and clean design. If you have prior work with lifelike virtual humans or conversational AI on the web, please share a demo link—seeing is believing.