Cinematic movie

AI cinematic video generator with talking characters

Write a scene in a sentence — who is in it and what goes wrong — and get back a short film. Every shot is real video, each character speaks in a voice of their own, and the ones on screen move their lips with their lines.

A woman and an older man talking across a café table, steam rising from their cups
A frame from a film made with BuildStory AI

On every paid plan, from $10/month · from 6 credits per 15 seconds of film

From one sentence to a finished film

  1. 1

    The script, and its cast

    The AI writes the scenes and every line of dialogue, then casts each character with one of 30 voices. The narrator is the voice you pick.

  2. 2

    Every line, recorded

    Each line is spoken in its character’s voice, in the mood the script gives it — tense, romantic, funny — before a single frame exists.

  3. 3

    The shots

    Your images go in the scenes they fit, as they are or used to build new shots. Without any, the AI designs the people and places from your description.

  4. 4

    Real video, in sync

    Each shot becomes a video clip. When a character speaks on screen, their recorded line drives the clip, so their lips match the words.

  5. 5

    The final cut

    Music, ambient sound and captions that follow every word are mixed in, ready to export for YouTube, TikTok or Reels.

Two characters facing each other across a lamp-lit table in a lighthouse at night
Two characters, two voices, one shot: both talk with their lips in sync.

What you can make with it

Scenes built on dialogue

Confessions, arguments, reunions: stories that a narrator alone can only describe. Here the characters say it to each other.

Films with your own cast

Upload up to 10 photos of the people and places in your story. The AI places them in the scenes they belong to and keeps them recognisable.

One voice per character

A character keeps the same voice from the first scene to the last, instead of sounding like someone new in every clip.

Vertical or widescreen

Pick the platform before you generate and every shot is made in its shape: 9:16 for TikTok and Shorts, 16:9 for YouTube.

Making them actually land

Give each character a name and a want

"Claire wants the truth, her father wants to keep the secret" gives every line a direction. "Two people talk in a café" gives the script nothing to argue about.

Keep a shot to 2 speakers

Up to 2 characters talk on screen in one shot while the others react. A crowd scene works best as a few two-person beats.

Bring a photo of anyone who must look the same

A reference image is what keeps a face consistent from shot to shot. Minor characters and places can come from the description alone.

Start at 30 seconds

Check the cast, the voices and the cut on a short version first. The story that works at 30 seconds is the one worth making at two minutes.

Prompts to steal

Each one names a cast and a conflict — paste it in as-is.

In a Paris café, a young woman finally asks her father about the man in the old photo she found in his desk. He has kept the answer from her for twenty years.
A lighthouse keeper and her estranged brother meet during a storm, ten years after their father’s funeral. He wants her to sell the lighthouse; she wants to know why he never came.
Two astronauts on a failing station argue over the last escape pod. One has a family waiting at home; the other holds the only codes that can launch it.
A street magician picks a rich man from the crowd for his final trick, and the man recognises him as the son he walked out on.

From 6 credits per 15 seconds of film

6 credits per 15 seconds in Standard quality, 12 in Premium for finer faces and textures in close-ups. Shown before you generate, up to 5 minutes a film. Here is what each plan's monthly credits make:

Starter

2 min 30 s

Standard · 1 min 15 s Premium

60 credits · $10/mo

Creator

6 min 30 s

Standard · 3 min 15 s Premium

160 credits · $20/mo

Studio

25 min

Standard · 12 min 30 s Premium

600 credits · $59/mo