StreamBuddy

A real on-screen companion for your stream.

Voice, an on-screen presence, native Twitch integration, and a memory of your community — the pieces that turn an AI model into a character your viewers know.

Live voice responses

Your character hears what's happening and replies out loud in real time, in a voice you choose — Azure, OpenAI, or free gTTS.

  • Real-time spoken responses
  • Multiple TTS providers & voices
  • A personality you define and tune

On-stream overlays

A PNGTuber avatar and live subtitles drop into your scene through token-based browser sources that keep your account safe.

  • PNGTuber avatar overlay
  • Live subtitles for accessibility
  • OBS-ready, account-safe sources

Native Twitch integration

Connect your channel and your character reacts live to chat, subscriptions, and channel-point and extension events. You control the permissions.

  • Reacts to chat, subs & channel events
  • Twitch extension support
  • Granular, revocable permissions

Memory & control

Manage what your character remembers, fine-tune how it responds, and run more than one — all in one place.

  • Per-character memory management
  • Response fine-tuning
  • Multiple characters on paid plans

Stays in character

You frame the world your character lives in, so it understands its own context and stays in character all stream long — whether it's a conspiracy-theorist raccoon, a posh robot butler, or a goblin who runs the chat like a tiny kingdom.

  • Define its world, lore & persona
  • Consistent, in-character responses
  • Context you control, not guesswork

Share with friends

Bring friends into your character's session so they can join the stream, chat, and be part of the show — and your character keeps a memory of each person it meets, so it greets your regulars by name stream after stream.

  • Invite friends into your session
  • Per-person memory of your community
  • Recognizes returning viewers by name

Ready to bring your character to life?

Start free, or go straight to hosting your own.