A new kind of story studio

Build a world.
Let it unfold.

Every great story belongs somewhere. Create the characters, places, and lore behind yours, then bring that world to life in writing, images, sound, and film.

See how it works
One world can hold a thousand stories.
Worldbuilding, reimagined

A place for the whole idea.

Start with a thought. Give it a world to live in. Every story you make can draw from the same growing foundation.

01

Give it a world

Shape the people, places, history, and rules that make an idea feel alive.

Universe · characters · places · items
02

Let it grow

Connect relationships, references, and discoveries as the world takes on a life of its own.

Canon · social graph · library
03

Tell its stories

Move from a spark to pages, images, scenes, and moving pictures with your world beside you.

Books · sequences · workflows
One world, many forms

A story can become anything.

Write the chapter. See the character. Direct the shot. Hear the voice. Sekaiko keeps the thread of your world through every form it takes.

WriteBooks, chapters, scripts
VisualizeImages, references, 3D
DirectSequences, shots, cuts
GenerateText, video, audio, voices
Simple pricing

Room for your world to grow.

Start free. Add storage as your library grows. Buy generation credits only when you need them.

Credits when you need themChoose a $5, $10, $20, $50, or $100 pack for AI generation.

Free

$0/forever

A place to begin your first world and explore the studio.

50 MB storage

About this much media

  • ≈ 25 images or
  • ≈ 5 videos or
  • ≈ 16 audios or
  • ≈ 2 3D files
  • Full access to Sekaiko tools
  • AI credits purchased separately
  • Publishing and editing included

Creator

$5/month

Room for regular images, clips, voices, and references.

5 GB storage

About this much media

  • ≈ 2,560 images or
  • ≈ 512 videos or
  • ≈ 1,706 audios or
  • ≈ 256 3D files
  • Everything in Free
  • 5 GB media storage
  • Priority support

Pro

Popular
$10/month

For active productions and growing media libraries.

25 GB storage

About this much media

  • ≈ 12.8k images or
  • ≈ 2,560 videos or
  • ≈ 8,533 audios or
  • ≈ 1,280 3D files
  • Everything in Creator
  • 25 GB media storage

Studio

$20/month

Space for larger worlds and media-heavy projects.

100 GB storage

About this much media

  • ≈ 51.2k images or
  • ≈ 10.2k videos or
  • ≈ 34.1k audios or
  • ≈ 5,120 3D files
  • Everything in Pro
  • 100 GB media storage

Plans are billed monthly in USD. Storage examples are estimates. AI credits are purchased separately and used when you generate media.

Your next world starts here

Give your idea a world to live in.