Configure the realtime assistant Enter your realtime-enabled OpenAI API key, choose a default voice, configure the wake phrase, and personalise the mirror assistant. Assistant name Hotword Say “Hey <hotword>” to start the realtime session. “Hey Mirror” always works as a fallback. OpenAI API key Stored only in this browser via localStorage. Enable NVIDIA Audio2Face API Use NVIDIA's cloud blendshape service instead of realtime visemes. Audio2Face API key Stored locally. Obtain from NVIDIA's API catalog. Audio2Face function ID Select the function for your chosen Audio2Face character. Audio2Face character Mark v2.3 Claire v2.3 James v2.3 Realtime model gpt-4o-mini-realtime-preview gpt-4o-realtime-preview gpt-4o-mini-realtime-preview-2024-12-17 Default voice Alloy Ash Ballad Coral Echo Fable Onyx Nova Sage Shimmer Verse Initial prompt Define the realtime persona. Use {{name}} and {{hotword}} to reference the current name and wake phrase.
Character animation Head settings Keep Mirror alive while idle. Random nods and a gentle hover react to speech volume for extra presence. Enable smoke reveal animation Play a swirling smoke effect before Mirror appears when you say the hotword. Enable blinks Natural eyelid motion is active by default. Enable random head nods Let the head subtly nod from side to side while listening. Nod intensity Adjust the base amount of movement during a nod. Volume influence Higher values tie nod depth more directly to the assistant’s speaking volume. Hover amount Controls how much the head floats in place between nods. Expression settings Drive brows and smiles directly from the audio stream for an expressive, friendly mirror persona. Enable eyebrow reactions Brows rise and fall in sync with the assistant’s volume. Eyebrow amount Sets the maximum eyebrow lift while reacting to speech. Eyebrow volume sensitivity Higher values raise brows more as the assistant grows louder. Happiness boost Blend in a friendly smile that can rise with the voice. Lighting Control Mirror’s key light and skin tint to match the environment and highlight facial animation. Loading lighting preview… Head mesh colour Choose the base albedo tint applied to the head mesh material. Enable spotlight Turn on the key light to sculpt Mirror’s face directly from the controls below. Spotlight intensity Adjust how bright the spotlight appears relative to the other lights. Beam angle Widen or tighten the spotlight cone to sculpt the highlights across the face. Offset distance Move the light closer to or farther from the face while keeping it trained on the target. Height offset Raise or lower the spotlight relative to the face; negative values sit below the chin. Vertical rotation Orbit the spotlight above or below the face while keeping it locked on the head.