Robin
Cast

A made-up host, labelled as AI.

Cast gives your work a host: a made-up person with a look, a voice and a persona, who presents it in a short. No real person’s face or voice is in it, and every short says it is AI.

  • Made up, never copied No one real by name, no famous face, no “in the style of”, no voice like anyone’s, and no face from a photo.
  • Five steps Host, Write, Make, Publish and Learn, on 1 to 5.
  • Labelled, always On every frame, in the caption and inside the cut and the file. Nothing turns it off.
  • Priced first The talking clip says its model, its seconds and its price, and waits for your yes.

Cast a host in four steps.

New host walks through Describe, Pick a face, The sheet and The voice. Describe them in your own words: a name, an age of 18 or over, how they speak and what they never say. A face drawn by Robin is kept on a sheet of looks; a photo with a face in it is refused, and every picture sent with a host is checked again before a paid make. A picture put on a cast card from a file waits for your tick that it is of a made-up character, or of someone who agreed. Their voice is designed, or one of your Mac’s, never a person’s own. Two rules are locked on every host: labelled as AI on every post, and says they are AI whenever anyone asks.

A short in five beats.

Write a short asks Robin in the chat, and it writes five beats in the host’s voice, a hook, a setup, a turn, a payoff and a call, with up to three hooks to choose from, a caption and hashtags. A line a made-up host cannot honestly say is flagged, such as “I play it every night”, or a health or money claim with no proof, and Make waits until it is rewritten.

Made, priced first.

The short is 9:16, cut on your Mac for free, with captions and B-roll from your own work. The talking clip runs on your own fal key, its model, seconds and price said before you press Yes: VEED Fabric at 15¢ a second, Kling AI Avatar at 5.62¢, or Seedance at 47.3¢. The clip’s price is the clip alone: a line with no recording is read free by your Mac’s voice, and a reading in the host’s designed voice is a press of its own, 2¢ a reading on your voice key. Above the limit you set in Settings, it waits for your yes. With no fal key, the press is Add a key, and nothing is sent.

Labelled, then handed to you.

Every frame carries “AI-generated · AI character, made with Robin”, the caption ends with it, and the cut, the preview and the file say it inside, read back before it is handed on. A sponsored short adds #ad. Robin never posts: Post… hands the short to Posts, which saves it for TikTok, Reels and Shorts, opens each upload page and copies the caption, and you tick each app’s AI label and press post yourself.

The price before you press.

Every make says what it costs and whose it is before it runs. Above the limit you set, it waits for your yes.

Free, on this Mac

  • Casting a host, and the checks on it
  • Cutting the short, its captions and its B-roll
  • The lines read by your Mac’s voices
  • The AI labels, on every frame and file

On your Claude plan or your own key

  • The talking clip, on your fal key, priced per second
  • A drawn look, about 4¢, and a reading in a designed voice, 2¢
  • The script: your Claude plan, or a model you choose

Works with what you use.

  • fal
  • ElevenLabs
  • TikTok
  • Instagram
  • YouTube

Cast, and twelve more apps beside it.

Robin is one app on your Mac: $39 for the first 100 licences, then $59, paid once, for two Macs and every update.