Why the length setting comes first
A writer plans pacing from the length: how long to set up, where the turn falls, how many scenes fit. Changing the length afterwards usually means another draft rather than a trim. From 5 source pages, read 2026-09-25; no maker pays to be listed.
Thirteen tools ask for a length before writing, in seconds for short video and in episodes or scenes for series. SceneMixer hides length tiers too long for its analysis step instead of accepting them and failing later.
Where a page gives no length setting, expect to steer length through the prompt or in editing.
| Tool | Field | What the page says |
|---|---|---|
| Revid | Length | Target durations of 10 seconds, 30 seconds or 2 minutes |
| Toonkit | Length | Seven length options from 15 seconds to 20 minutes |
| Kapwing | Length | Short-form scripts from 10 seconds to 1 minute |
| Pippit | Length | Episode length and number of scenes set during setup |
| SceneMixer | Length | Length tiers, roughly 720 English words per episode |
Inclusion rule. Readings used as examples in this note. Order. The order they are discussed in.
1In the makers' words
Target duration ~ 70 words 30s 10s 2m
Revid, AI script generator page
There are seven options from 15 seconds to 20 minutes, with 15 seconds as the default.
Toonkit, guide to creating from an idea
Generate short-form scripts from 10 seconds to 1 minute with a fast hook, concise pacing, and TikTok-friendly structure
Kapwing, AI video script generator page
You control the episode length and the number of scenes during the setup process
Pippit, AI script writer page
Chosen from length tiers rather than typed as a number, and any tier that would not fit the analysis ceiling is hidden rather than offered and then rejected.
SceneMixer, AI script generator page
- GeneratorTarget durations of 10 seconds, 30 seconds or 2 minutes
- Step 02Seven length options from 15 seconds to 20 minutes
- TikTok scriptsShort-form scripts from 10 seconds to 1 minute
- FAQEpisode length and number of scenes set during setup
- What you set before it writesLength tiers, roughly 720 English words per episode