NOWA Engine is a platform that gives your virtual character a voice, a personality, and the ability to interact — live on stream or on her own. Think of it as the engine behind your character: you design who she is, we make her run.
What It Does
Auto Chat Replies
Your character reads your live chat and replies in real time — in character, in her voice, even when you're offline. She keeps your community active without you being there.
Custom Persona
Set your character's personality, tone, backstory, and speaking style. She stays in character consistently — no drift, no breaking character.
Live Interaction Mode
Your character appears on stream, reacts to what's happening, and interacts with your audience live. She's a co-host, not a chatbot.
Video Content Tools
Produce short-form video content with your character's face and voice. Give her a script — she delivers it. No recording, no editing.
Multilingual (EN / ZH / JP)
Your character switches seamlessly between English, Chinese, and Japanese. One character, any audience.
VTube Studio & OBS Integration
Works with your existing Live2D setup. Plug into VTube Studio and OBS — no custom tooling required.
Who It's For
Streamers and content creators who want an AI co-host or a virtual character that can run their community when they're offline.
Agencies and talent managers who want to scale virtual talent without hiring performers for every character.
Brands that want a custom AI character as a community ambassador, customer-facing persona, or content creator.
Developers and builders who want a flexible AI VTuber platform that supports custom models, adjustable memory, and API-level control.
What Makes It Different
It's not a chatbot. A chatbot answers questions. NOWA Engine gives your character a face, a voice, and a persona — she appears on screen, speaks in character, and interacts the way a real co-host would.
It's genuinely AI-driven. Not a human performing a role. Not pre-recorded. Not scripted. Your character thinks and responds in real time.
It's adjustable. Control long-term and short-term memory separately. Swap AI models (any OpenAI-compatible endpoint, including open-weight models like Gemma on higher-tier plans). Configure how your character evolves over time — or keep her exactly as she is.
It's proven. Nowa — the AI VTuber streaming on YouTube — runs entirely on NOWA Engine. She's been live since early 2024. Watch her in action →