AI Story Continuer: What It Reads, What It Writes, How to Steer It
Where the continuer lives
Open a project whose script has been read, go to step 3 and scroll below the episode cards. The Add an episode card has two tabs: Paste the script and Let AI continue. The second is the continuer. It is only offered where there is something to continue: a project of your own whose reading has finished. Ad projects, remakes and the sample projects do not have it. Making the next episode covers the whole flow, including what to do when the next episode is already in your script. This page is about what the continuer itself reads and writes.
What it reads: five things
| It reads | Exactly what | How much |
|---|---|---|
| 1. A recap of the story so far | The title, then every earlier episode as its number, title and short synopsis | Up to 1,500 characters for the last episode, 200 for each of the others, 6,000 for the whole recap. If the recap runs over, the earliest episodes shrink to titles first |
| 2. The last episode’s closing hook | The cliffhanger the reading recorded at the end of your last episode, which is where the new episode must pick up | One line |
| 3. Your cast and places | Characters first, then places, then props, each by name with the start of its description | Up to 40 entries, 60 characters of description each |
| 4. The way your script ends | The last stretch of your own script, cut at a sentence boundary where it can be | The last 600 characters |
| 5. Your direction | What you type in A direction (optional) | The first 500 characters |
The names are the part that matters most. The continuer is told to use the cast and places exactly as listed, not to rename anyone and not to invent a second character with the same job. It may bring in new people. The leads and the people already in the project keep their names and their roles.
What it cannot see
The brief is short on purpose, so a few things are outside it, and it helps to know which.
- The full text of your earlier episodes. It sees the recap and the last 600 characters, not every line. A detail that lives only on page 12 may not make it into the new episode, so put anything that must carry over into your direction.
- The storyboards and the clips. What was shot, and how it came out, is not part of the brief. The continuer writes script, not shots.
- Your pictures and voices. It sees the written descriptions of the cast, not their sheets or voices.
- Your style choices. Visual style, scene style and costume style are fixed for the project and are not something the writer changes.
Everything it writes is then read again as a normal script, so the cast, places and props of the new pages are checked against the existing project. A person who appears for the first time is added; a person who is already there is matched.
The three controls
Direction. A sentence or two of what should happen next, in plain events. The field shows an example along the lines of the old man takes her to the pier; the black car follows. It is optional: left empty, the continuer is simply told to carry on from the hook and choose the direction itself.
Episodes to write. One, two or three. Each option shows what it will target (“About N characters”) and its price before you press anything, so you can compare writing one episode against three.
Length. There is no length box. Each new episode aims at about the average length of the episodes already in the project, held between a floor and a ceiling so that one very long or very short opening episode does not set the pace for the rest. To get longer episodes, write or paste one by hand. To get shorter ones, write fewer episodes at a time and trim the draft.
The draft is written in the language and format of your script: the same scene headings, the same way of marking who speaks, a numbered episode heading to begin each new episode. If your interface is in a language that uses the same writing system as your script, it is written in that language; otherwise it follows the script.
Steering that works
The continuer starts at the closing hook, so the most useful thing you can give it is the next event, not a mood. Compare:
| Direction | What the continuer does with it |
|---|---|
| “Make it more exciting” | Nothing to build on. It will choose its own event, and may choose a quieter one |
| “She finds out the truth” | A reveal with no object or person attached. Better: say which fact, and who tells her |
| “Mara takes the letter to the harbour master; the black car follows her onto the pier” | Names a person from the cast list, a place, a prop and a pressure. This is the shape that survives into a storyboard |
| “Two episodes: the first ends with the car stopping; the second ends with the door opening” | A direction can set the end of each episode, which gives the draft a hook to write toward |
Three habits help. Use the names exactly as they appear on the character cards. Ask for one episode first, read how it sounds, then ask for more once the voice is right. And treat the hook as a promise: a direction that contradicts how the last episode ended makes the continuer choose between your note and the recap.
Read the draft, then add it
While it writes, the card says Writing the next part… and counts the characters so far. When it is done, a banner says the draft is in and to read it, change anything and then add it. The draft opens in the paste tab, so you edit it like any pasted script. Discard draft throws it away. Try again runs it once more with the same or a new direction.
The money is in two steps and both are visible. The writing is priced by what it writes, at your text model’s rate: on the default text model that is 2 credits per thousand characters, and English counts 3,333 characters as 1,000, the same rule the reading uses. A draft that fails is refunded under the usual rules. Only when you press Add and read is the new text read, priced like any reading of that length, 4 credits per thousand characters on the default. Earlier episodes, their storyboards and clips are not touched.
After the reading, a window lists any character, place or prop that appears for the first time, and any new state of an existing one such as an outfit change or a ruined room, with the price of drawing them. The first 15 setup images on an account are free, and they count if you still have them.
Limits worth knowing
| Limit | What it means |
|---|---|
| Three episodes per draft | To get more, run it again after you add the first draft |
| Fifty episodes per project | The same ceiling as the first reading. At fifty the card stops offering more; start part two as its own project and bring the cast with Pick existing |
| One draft at a time | While a draft is being written the card asks you to wait for it, or stop it, before starting another |
| Room in the project | If the script is already close to the longest the reading accepts, there may be no room for another episode. The card refuses instead of writing something that could not be read |
| No re-reading as a whole | Once something has been added, the project cannot be read again from the top. To cut the same script differently, start a new project with it |
Part two as a separate project is explained in Reuse a character, scene or voice across projects, and the habits that keep a long run steady are in Making a multi-episode series.
FAQ
What is an AI story continuer?
A tool that writes the next part of a story from where it stopped. In SceneMixer it is the Let AI continue tab on the Add an episode card in step 3. It writes script text that you review before it becomes episodes.
Does it read my whole story?
No. It reads a recap of the earlier episodes, the closing hook of the last one, the cast and places by name, the last 600 characters of your script and your direction.
How many episodes can it write at once?
One, two or three. Run it again for more.
Can I control where the story goes?
Yes, with the direction field, up to 500 characters. Name the people from your cast list and the event you want. Leaving it empty lets the continuer choose.
Will it keep my characters’ names?
It is told to use the names in your cast list exactly and not to create a second character with the same role. It can add new people.
Can I edit what it writes?
Yes. The draft lands in the paste tab as ordinary text. Change anything, or discard it, before pressing Add and read.
Does it cost credits?
The writing is priced by length at your text model’s rate and the price is on each option. The reading of the added text is charged separately, only when you add it.
Can I continue an ad, a remake or a sample?
No. The continuer is for projects of your own that were made from a script and have finished reading.
What if it contradicts an earlier episode?
Edit the draft before adding it. Anything that must carry over, such as a fact that appears only on one page of an early episode, is safest stated in your direction.
Ask for one episode, read it, then ask for more
The price of each option shows before you press Write it, and nothing is added to the project until you do.
Updated November 2, 2026