AI Policy
Lastslate's AI reads your script and never writes it. This page says what that means in practice: what the AI does, what leaves your computer and when, who sees it, and how to show an employer, a contest, or your guild exactly how you used it.
1. What the AI does, and what it never does
The collaborator in Lastslate is a reader. You ask it about your script and
it tells you what it sees: where the second act goes quiet, which character
sounds like another one, what a scene is actually up to. It can read as a
First Reader, a Showrunner, a Script Editor, or a Staff Writer. It can run a
continuity check across the whole script, draw story-analysis charts, and
answer slash commands like /cast or /locations
that count and sort what you already wrote. /loglines proposes
loglines from your finished script — pitch copy for the room, not a line
of the script.
In chat it may suggest a story beat. You can pin that beat to the Beat
Board, where it carries an AI badge so it is never
mistaken for yours. If you want it in the script at all, Lastslate puts it
there only as a synopsis note prefixed (AI beat) — a note to
yourself, never a scene heading, an action line, or dialogue. Synopsis
notes never print. PDF, Final Draft, RTF, HTML, text, CSV and JSON exports
leave them out; a Fountain file keeps them as = lines, the
way Fountain stores every synopsis.
It never:
- Writes dialogue, action, scene headings, or scenes. There is no button in Lastslate that produces screenplay text. We used to ship a tool that turned a logline into an outline; we removed it, because outline text is still writing.
- Edits your script. Everything the AI says lives in the chat panel or on the board. It has no way to change a word on the page.
- Trains on your work. Lastslate never trains a model on your scripts, and Anthropic, which runs Lastslate's AI, is barred from it by its commercial terms (section 4). If you connect your own AI account instead, that vendor's terms decide, so check them.
2. It's your choice, never required
The editor works with the AI switched off. Nothing about formatting, pagination, drafts, review links, or the Beat Board depends on it.
2.1 The master switch
Settings → General → Privacy → AI features turns off every AI feature on that computer: chat, continuity checks, skills, the Companion window's chat, and the automatic cache warm-up described in section 3. Off means nothing from any script on that machine is sent to a model.
2.2 Covered work — one script at a time
Use this when a script shouldn't go to an AI model, whether a contract, an employer, a contest's rules or your own choice says so. Open a script's Title Page settings (File → Title Page…) and tick Covered work — AI off for this script. The flag is saved with the script itself (in the title page of a Fountain file, in a hidden field of a Final Draft file), so it travels with the file: open the same script on another computer, or in Companion Mode, and the lock is already on. Final Draft itself doesn't read that hidden field and may drop it if you save the script there, so check the setting again after editing a script in Final Draft. It is never printed, and it's left out of PDF, Final Draft, RTF, HTML and text exports — a producer reading your PDF will not see it. Fountain and JSON exports keep it, so the lock travels with the script. The lock lives in the draft's title page, and a new draft made from a locked one starts locked. While it is set, nothing from that draft is ever sent to a model, whatever the master switch says, including when you ask from another draft of the same script: the AI is told the draft is off-limits instead of seeing it.
2.3 Showing how you used AI
If a studio, a showrunner, or a contest asks how you used AI on a script, export the AI involvement statement for that script (section 6). It lists every AI feature that ran, when, and what left your computer. If the answer is "nothing", the statement says so.
3. What leaves your computer, and when
The AI runs on a server, so when you use it, part of your script has to go there. This is the complete list.
| What you do | What is sent |
|---|---|
| Ask the collaborator a question or run a slash command | Your full script, your question and the conversation so far, the names of your drafts, and which scene you're in |
| Ask about a selection | The lines you selected, plus everything in the row above |
| Attach a scene, a character, another draft, or your notes with @ | That material, plus everything a question sends |
| Ask something that needs another draft, like comparing two versions | That draft's full text too, if the AI opens it. It can open any draft of the script you have open, without you attaching it. |
| Lastslate warms the cache (below) | Your full script, the names of your drafts, and which scene you're in. No question. |
| Run a Lume continuity check | Your full script |
| Covered-work script, or AI features switched off | Nothing |
Cache warm-up. When AI is on, Lastslate may send your script ahead of your first question so the first answer comes back fast. It is the request a question would make, minus the question, under the same rules, and it never runs for a covered-work script or when AI features are off.
Nothing else sends script text to a model. Two things can carry it to us instead, and only when you choose them: cloud backup and review links (see the Privacy Policy), and a problem report, which can quote lines (section 5). The anonymous usage counts described in the Privacy Policy are filtered so they cannot contain your script, its title, or your file names.
4. Who processes it, and for how long
Lastslate's AI runs on models from Anthropic, through Lastslate's commercial API account. Free runs on our standard model, Claude Haiku. Paid plans add our advanced models, Claude Sonnet and Claude Opus, and can pick Haiku, Sonnet, or Opus for any question. Anthropic's commercial terms prohibit training on customer content, so nothing you send is used to train their models, and nothing we hold is used to train ours.
Anthropic keeps request logs for a short time for abuse prevention and then deletes them. Nothing of yours stays there beyond that.
5. What Lastslate keeps
- On our server: usage metadata only. How many tokens a request used, which model, what it cost, and which feature made it. Not the question, not the script, not the answer.
- Problem reports, if you send one. If you click Report a problem on an answer, we receive that question, that answer, and the note you typed. Because you may be asking about a particular line, a report can quote lines from your script. We use reports to fix what went wrong. We haven't set an automatic deletion date for them yet, so a report stays until we delete it or you delete your account (which deletes your reports with it). If you want yours gone sooner, ask us and we'll delete it. Nothing is reported unless you choose to.
- On your computer: chat history. Your conversations with the collaborator are stored in Lastslate's app data on this computer, not inside your script file. They are never synced to our server.
- On your computer: the AI involvement ledger. For each script, Lastslate appends a line every time an AI feature runs — which feature, when, and what left the machine. It never records the text. The ledger is what the statement in section 6 is built from.
6. The AI involvement statement
File → Export AI Involvement Statement… (or the Export… button in Settings → General → Privacy) writes a Markdown or PDF document from the ledger for the script you have open. You choose the format in the save dialog. PDF is picked unless you change it.
What it contains
- The script. Its title, its Lastslate ID, and whether the covered-work lock is on.
- What the AI does. A plain paragraph: Lastslate's AI reads and comments, has no feature that writes script text, and an AI beat can reach a script only as an
(AI beat)synopsis note, which never prints and is left out of every export except Fountain. - A summary. How many AI runs there were, the first and last, how many sent the full script, how many were refused because AI was off, and how many went through your own AI account. If no AI feature ever ran, it says that in one line.
- Runs by feature. Chat questions (slash commands and skills count as chat questions), cache warm-ups, and Lume continuity checks.
- AI material you placed. AI-suggested beat cards you added to the Beat Board, and scenes you created from them.
- The log. One row per run: date and time, feature, whether it went through Lastslate or your own key, what left your computer (the full script, one scene, a highlighted passage, or nothing), and how it ended.
The text of what you asked and what came back is never in it.
What it does not claim
It does not say your script is good, and it does not say any guild or employer approved of anything. It records what happened inside Lastslate on your computer. If you also pasted pages into some other tool, or copied an answer out of the chat and pasted it into your script yourself, the statement cannot know that, and it does not pretend to.
Where it is useful
- Employer consent. When a company's AI policy asks you to disclose, or asks for consent before you use AI on their project, the statement is the record you hand over.
- Copyright registration. The U.S. Copyright Office asks applicants to disclose AI-generated material in a work. A statement showing the AI only read your script is the cleanest answer there is.
- Contests and fellowships. Many now ask whether AI was used. Attach the statement rather than guessing.
7. Where this comes from
These rules track the Writers Guild of America's public guidance on artificial intelligence: the AI article in the 2023 Minimum Basic Agreement, summarised on the Guild's Know Your Rights page, and the WGAW member guide Writers and Artificial Intelligence. We read them and built to them. AI output cannot count as literary material, so Lastslate's AI produces none. A writer may use AI only with the company's consent, and companies have to disclose AI material, which is why there is a per-script lock, an AI badge on every suggested beat, and a statement you can hand to whoever asks. Writers' material must not train models, so our contracts forbid it.
Lastslate is not affiliated with, endorsed by, or certified by the WGA or any other guild. Whether a particular use is allowed on a particular project is between you, your employer, and your guild. The tools on this page exist so you can follow their rules, not so we can speak for them.
8. Questions
If something here is unclear, or your employer's policy asks a question this page doesn't answer, say hello. A real person reads every message. When this page changes, the date at the top changes with it.