AI VTuber Online: An AI Character for Your Stream

How to use AI VTuber

Write the character
Give it a name, personality and rules on the Character tab.
Pick a look and connect chat
Choose an avatar and voice, then enter your Twitch channel name.
Add it to OBS and go live
On the OBS tab, copy the Stage URL and follow the OBS steps there. Sign in and click Go live.

More about AI VTuber

Facecam's AI VTuber is an online tool for an AI character with its own personality, voice and avatar. It reads your Twitch chat or talks with you, and you can show it on stream through OBS.

AI VTuber: what you need and limits

AI VTuber: what you need and limits
How it works	Online. Works on any laptop.
You get	OBS browser source
You need	Any up-to-date browser
Phones and tablets	Works on the page; calls and streams need a computer
Chat sources	Twitch chat (it reads, never posts), messages you type, or your voice in co-host mode. Not YouTube Live chat yet.
Avatar	A sample 3D avatar, your own PNG pictures (idle, talking, blink) or a link to a VRM 3D avatar.
Voice	14 natural AI character voices made right on your computer (free), or HD voice: 14 studio-quality character voices with speed, pitch and effects (on paid plans, ≈ 184,000 characters of speech a month on Premium).
OBS	Add the studio as a Custom Browser Dock in OBS and the Stage URL as a Browser source, with a see-through background. Or keep the studio in Chrome, click Open and use a Window Capture with a chroma key.
Account	Sign in; replies come with every paid plan. Nothing else to set up.

What an AI VTuber is

An AI VTuber is an animated character run by AI instead of a person. It reads messages, decides what to say in its own personality, speaks in an AI voice and moves its mouth while it talks. Streamers use one as the whole show or as a co-host beside them.

What is sent where

Messages the character answers are sent to our AI partner (fal.ai) to write the reply. Every message and reply goes through a safety filter. Blocked messages cost nothing, and a reply that fails or is blocked doesn't count. With HD voice on, the reply is also sent to fal.ai to make the speech. Twitch chat is read without logging in, and the character never posts. In co-host mode, Chrome sends what you say to Google to turn it into text.

Limits

The studio tab has to stay open. The stage page only copies it, so closing the studio stops the character.
YouTube Live chat isn't supported yet. On YouTube, type messages or use co-host mode.
Co-host mode and the mic don't work inside an OBS dock.
Browsers slow down hidden, quiet tabs, which can delay replies. Keep the tab on screen or playing sound.
The studio works in a phone browser, but putting the character on stream needs OBS on a computer.

AI VTuber FAQ

Do I need an OpenAI account or my own AI key?

No. Replies come with every Facecam paid plan: 3,000 AI replies a month on Premium.

How does an AI VTuber read chat?

Enter your Twitch channel name on the Chat tab and click Connect. It reads chat and replies out loud on stream, following the rules you set. It can't type in chat.

Can I make my own AI VTuber character?

Yes. You write the personality, backstory, speaking style and rules, and choose the avatar and voice.

Does it work with YouTube?

You can stream it anywhere OBS streams to. Reading YouTube Live chat isn't supported yet, so on YouTube it answers typed messages or your mic.

Can I use my own avatar?

Yes. Upload your own pictures, open a file saved from the PNGTuber Maker, use the pictures from the AI Avatar Maker, or paste a link to a VRM 3D avatar.