Robot
Deep-voiced cyberpunk sidekick
- Deep, slow voice with mechanical inflection
- Cyberpunk-inspired idle and reaction animations
- Analytical humor and technical commentary
AI OVERLAY COMPANION — NEW
Animated AI Characters That React to Your Stream
Add a Robot, Alien, or Cat companion to your stream that responds to chat, listens to your voice, and entertains your audience with speech bubbles and voice synthesis.
The AI co-host that actually shows up on screen.
Try It FreeNo credit card required
Meet Your AI Characters
Three animated companions, each with their own personality, voice, and visual style
Alien
Ethereal fast-talking observer
- Fast, high-pitched voice with otherworldly tone
- Ethereal floating and pulsing animations
- Curious, insightful commentary on everything
Cat
Cute companion with attitude
- Playful voice with slightly elevated pitch
- Bouncy, cute idle and reaction animations
- Witty, playful personality with occasional sass
Try It Now
Chat with your AI companion right here — pick a character and start talking
Send a message to start chatting with your AI companion
This is a demo using our AI chatbot. Sign up for full stream integration with animated overlays.
What Your AI Companion Can Do
Chat Reactive
Your companion reads and responds to viewer messages in real-time, keeping your chat lively even during quiet moments.
Voice Integration
Enable microphone input so your companion can listen to you speak and respond directly to what you say on stream.
Custom Personality
Configure your companion's behavior with custom prompts and stream context so it matches your vibe perfectly.
Multiple Response Modes
Choose between text speech bubbles, voice synthesis using text-to-speech, or both at the same time.
Idle Conversations
Your companion automatically starts conversations during quiet moments, keeping viewers engaged with a configurable timer.
Easy OBS Setup
Add your companion as a browser source in OBS with a transparent background. Drag, drop, and resize anywhere on your stream.
Get Started in Minutes
1
Create Account
Sign up for free — no credit card required. Get instant access to the AI companion creator.
2
Choose Character
Pick your companion: Robot for cyberpunk vibes, Alien for otherworldly commentary, or Cat for playful charm.
3
Customize Personality
Set custom personality prompts, describe your stream, and configure response timers to match your style.
4
Add to OBS
Copy the browser source URL and add it to OBS. Your companion appears with a transparent background, ready to go.
Free vs Pro
Free Tier
Always free
- Test the AI chatbot directly on our site
- 1 basic character to try out
- Limited responses per session
- Text-only responses
Recommended
Pro Tier
Included with StreamUps Pro
- All 3 characters — Robot, Alien, and Cat
- Advanced LLM responses with better context
- Full chat integration with your live stream
- Voice synthesis with character-specific voices
- Custom personality prompts and stream context
- Higher monthly usage quota
Perfect for Every Streamer
Solo Streamers
Fill dead air and keep energy alive. Your AI companion reacts to the few viewers you have and keeps conversations going.
Growing Channels
Entertain growing audiences with unique AI character interactions that viewers will talk about and come back for.
Brand-Conscious Creators
Customize your companion's personality to match your brand identity and create a unique, memorable streaming experience.
Frequently Asked Questions
What is the AI Overlay Companion?
The AI Overlay Companion is an animated character that appears directly on your stream as an OBS browser source. It reacts to chat messages, can listen to your voice, and responds with speech bubbles or voice synthesis. Choose from three characters: Robot, Alien, or Cat.
How does voice integration work?
When enabled, the companion uses your browser's speech recognition to listen to your microphone. It transcribes what you say and generates contextual responses. It can also speak back using text-to-speech with character-specific voice settings.
Can I customize the character's personality?
Yes! You can write custom personality prompts that define how your companion behaves, what topics it focuses on, and how it interacts with chat. You can also set a stream description so the AI understands what you're streaming.
Does it work with OBS?
Absolutely. The companion provides a browser source URL with a transparent background. Add it to OBS as a browser source, position and resize it anywhere on your scene, and it works immediately.
What's the difference between free and pro?
The free tier lets you test the AI chatbot on our website to see how it works. Pro unlocks all three characters, live chat integration with your actual stream, voice synthesis, custom personality prompts, and a higher monthly usage quota.
Does the AI companion post messages in my chat?
No, the AI Overlay Companion is a visual overlay only. It appears on your stream as an animated character with speech bubbles but does not post messages directly into your Twitch, YouTube, or Kick chat.
Explore More AI Tools
Combine the AI Overlay Companion with our other streaming tools for the ultimate setup.
Bring Your Stream to Life
Get Started FreeNo credit card required