Ship lifelike, tool-using live avatars at consumer scale in 1 prompt. Save up to 90% with rates from just 4¢/min.* Try for free!
17 free realtime minutes · no card
*Savings based on publicly listed prices for comparable full-stack avatar API plans as of September 2026.
Every character starts from a single image.
Companions your users come home to. Trainers that push back. Hosts that never leave the stream. Pick a scenario to see it in session.
Prelulu is a live romance-chat app built on this platform and running in public. Pick a character, press Call, and you are in a voice-and-video conversation with them — the same session primitives every other case on this page uses, in somebody's actual product.
She dies on an absurd hill and concedes only to an argument she has not heard before — live, and interruptible mid-sentence.
She goes live to a room of viewers, reads the comments out, and thanks gifters by name — a crowd she cannot see, reacting in real time as it fills up.
Upload a photo of anyone — a crush, a celeb, your ex — and minutes later they’re a living avatar you take on a live voice-and-video date. Then Rizz Wrapped hands you the receipts: your score out of 100, and the exact line that gave the biggest ick.
Say what you want built and real code streams onto the panel, then runs in the browser. When it throws, she reads the error and fixes it.
She sets a problem and the diagram under it is what you answer with — drag the radius round a circle and the sine wave draws itself.
Start on an example avatar, so your first live call is a key and a prompt away. The app you build there is the app you keep — your own character changes who is on screen, not what you wrote.
Sign in, name your key, and copy it into your app’s server settings. No avatar setup needed.
Paste the prompt below into your coding agent: it builds a working page around an example avatar, then optionally swaps in a character generated from one photo of your own.
Build a one-button page that opens a live video call with the example avatar Rin (seed-rin-ashfall): she speaks first, two-way voice, her portrait while she connects, a hang-up button. Stop there for testing. Key in REALTIME_AVATAR_API_KEY. Follow https://realtimeavatar.ai/llms.txt. Optional — to use your own avatar instead: create Nova from nova.png with a warm mid-pitch voice, poll until ready, and repoint the same button at her without changing the page.
Every plan is a monthly pot of credits. One credit is one second on air — and the same pot pays for generating portraits, idle clips and avatars, so you are never choosing between building a character and talking to it. Live time lands around five dollars an hour.
Your first real users
Ship a real prototype
Production apps
Realtime Avatar is a developer API and SDK for putting a live character into your product on a voice or video call. You create an avatar from a single portrait, mint the session from your own server, and the platform streams that character's voice and face in realtime while your own tools run inside the conversation.