A small team.
A full studio.

WorldThread is software for producing serialized audio drama, with Claude at its core. It's designed to remember every character, promise and consequence, so a small team can produce whole seasons that hold together.

See how it works Contact

AI can write a great scene. A hundred episodes need more than that. They need a memory.

WorldThread is a narrative world model: a versioned record of every character, relationship, promise and consequence in a season. Claude writes against it, every draft is checked against it, and nothing becomes part of the story until you approve it.

A promise made in episode 3. Remembered in episode 14. Paid off in episode 40.WorldThread gives Claude a memory that lasts the whole season.Illustrative example.

Ask your story anything.

WorldThread keeps every thread, and shows you where each one leads. These examples come from Dreamless, our first series: a colony ship wakes 41 years late, and someone has been cooking in the galley.

EditEpisode 3: Nate keeps his father's knife instead of trading it.

7 later scenes depend on this. Nothing changes until you review them and approve the change. They are in episodes 5, 9, 14, 22, 31, 38 and 44.

Illustrative example from Dreamless.

Genesis

Your writers' room. From an idea to a show.

IdeaA colony ship wakes 41 years late beside something the size of a moon.

Who is your lead? What should listeners fear? How might it end?

World

  • The Meridian, 9,000 sleepers
  • The Lantern, an alien archive the size of a moon
  • The Fade, a disease that erases memory
  • Earth's Charter Board and its factions

Cast

  • Nate Halloran, engineer
  • Wren Halloran, his daughter, asleep
  • Tara Williams, pilot
  • Captain Hugh Marrick

Season

  • 50 episodes
  • Five story arcs of ten episodes
  • A hook at the end of every episode
  • Endings kept open, then earned

Episode 1 ready for your review.

Illustrative example from Dreamless.

Genesis works like a room full of writers, powered by Claude: it asks the right questions, offers options and builds the world, the cast and the season plan with you. Once you approve the foundation, every episode builds on it.

Any genre. Its own rules.

Building

Genre playbooks include superhero serial, progression fantasy, villain protagonist, rival ensemble and world events. Superhero serial and progression fantasy are built.

Rivals that learn

The opposition watches what the heroes do, adapts, and stays a step ahead.

Powers with rules

Magic and abilities have limits and a price. Every use has to be earned, and paid for.

Growth that's earned

Characters level up through the story, not by decree, and can stall, branch or fall.

Worlds that react

Institutions, places and factions respond to everything that happens.

The Creative Lab. Try anything.

Building

Pitch a “what if.” Claude brainstorms options, WorldThread checks each one against everything already established, and nothing changes until you add it to the story.

What ifthe galley cook left a message?

Fit check

  • Fits the world rules
  • Timeline holds: recorded in year 81
  • Nobody learns more than they should

4 later episodes would change.

Illustrative example from Dreamless.

Built on Claude

Every episode runs through the whole studio.

  1. PlanClaude Built.
  2. DraftClaude Built.
  3. CheckWorld model Built.
  4. ReviewClaude Building.
  5. RepairClaude Building.
  6. ApproveYou Built.
  7. VoiceElevenLabs API Not built yet.
  8. MixMix and mastering Not built yet.
  9. ReleaseYour listeners Not built yet.

Claude

Today
The story engine is built and tested.
At launch
Every episode runs on the Claude API: Claude plans, drafts, reviews and repairs it. Voices come through the ElevenLabs API.

Claude does the judgment work. It plans each episode against the season plan, drafts the scenes, then reviews and repairs them. Every fact it uses is checked against the world model, so Claude never has to hold 50 episodes in its context window.

On the API next

  • Genesis sessions with Claude that build a season's world, cast and plan
  • For every episode: a plan, scene drafts, specialist reviews and repairs

ElevenLabs

Auditions builtVoices next

Each character will be cast to match who they are, then keep that voice across hundreds of episodes. ElevenLabs will also provide sound effects, ambience and music for every scene.

On the API next

  • Voices, sound effects, ambience and music through ElevenLabs

Your studio, department by department

Built5 departments

  • Writers' roomClaude

    Builds the world, cast and season with you, then drafts each episode to the plan you approved

  • ContinuityWorld model

    Tracks who knows what, where everyone is and what has changed

  • ResearcherWorld model

    Answers any question about the story, with the scenes it came from

  • Showrunner's deskYou

    Approves the foundation and every episode, and previews the impact of any change

  • Line producerCost guard

    Budgets and reserves every paid call before it runs

Building2 departments

  • Story editorClaude

    Reviews every draft for continuity, clarity and pull, then repairs it

  • Art departmentVisual Bible

    Keeps each character's look consistent, changing only when the story does

Today: the story engine is built and tested, and Dreamless, our first show, is being written with Claude. Next: live production on the Claude and ElevenLabs APIs.

Why listeners come back.

Continuity keeps a story true. Craft keeps people listening. WorldThread plans both, across the whole season.

Seven ways a season keeps people listening. Choose one to see where it lands across all 50 episodes.

Illustrative example.

The colony ship Meridian drifting beside the Lantern, a vast alien structure glowing amber from within, under a dim red star.

Our first series

Dreamless

Year 101

The colony ship Meridian is carrying 9,000 sleepers on a 98‑year voyage to a world called Haven. A six-person maintenance shift is due to wake in year 60 for a routine check.

They wake in year 101 instead. They are 41 years late, the ship should have reached Haven three years ago, and it is parked beside something the size of a moon. And someone has been cooking meals in the galley.

Sci-fi survival mystery. Season one in development.

Sleepers aboard
9,000
Years late
41
Episodes in season one
50

Hear it. See it. Watch it.

Every episode will get the full studio treatment: voiced, scored and mixed, with pictures for those who want them. An AI sound department, art department and editor, all directed by you.

  1. See itBuilding
  2. Watch itPlanned

1

Hear it.

Next

Episode 1, scene 2: the galley

NarratorThe kitchen was the only warm room on the ship. It smelled of burnt eggs.

Switch a layer off to see how the scene is built. Concept view: real Dreamless audio comes once voice production starts.

  • Voices. Cast to match each character, with one voice for the whole series.
  • Sound effects and ambience. Every place has its own sound: the galley always hums, the vault always echoes.
  • Music. Recurring themes for characters and places.
  • Mix and mastering. Every episode balanced, leveled and checked before release.
  • Audio cues. Listeners always know where they are and who is speaking. Building

2

See it.

Building

Prefer to see the story? Every episode will also play as an illustrated motion comic, with artwork that moves in sync with the audio, line by line.

Every character and place comes from the Visual Bible, so Nate looks like Nate in every episode.

WorldThread

Dreamless

Episode 1: Year 101

Concept: Dreamless, episode 1, in both modes.
Nate Halloran, the lead of Dreamless, in a worn gray engineer's coverall, looking out of a frosted porthole.

Visual Bible Building

Nate Halloran

  • Thin white scar through the left eyebrow
  • Close-cut dark beard, gray eyes
  • Worn gray engineer's coverall
  • His father's breaker's knife
Nate Halloran in the galley, looking down at one used bowl and a spoon on the counter.
Episode 1, scene 2: the galley.

Fixed in the Visual Bible. It changes only when the story changes it.

The galley: a small, warm-lit room with one used bowl and a spoon on the counter, a pan on the stove and fresh eggshells in the bin, nobody there.
The galley. The only warm room aboard.
The cryo vault: rows of frosted sleeper pods fading into the dark.
The cryo vault. 9,000 sleepers, drawn the same way in every scene.

3

Watch it.

Planned

Animated scenes will come first, then full video. The same world model that keeps the story straight will keep the pictures straight too.

Images are concept art for Dreamless. Dialogue shown is from the episode 1 script.

1,400+

automated tests run on every change to the engine

Built to be trusted.

  • A person approves everything that becomes part of the story.
  • Every paid API call is budgeted and reserved before it runs.

Talk to us.

Partners, voice talent, investors and future listeners: we'd love to hear from you.

hello@worldthread.net
Daniel Catterall

Founded by Daniel Catterall

Creator of Dreamless, based in Australia. Designs the WorldThread story engine and directs the AI agents that build it.