By LexSyracuse, United States1 product across 1 category
Built for this. A word processor that happens to have AI in it, so the writing surface comes first and the suggestions stay out of the way until asked.
Free plan
Yes
Free tier available
Month to month
$24.99/mo
Lex Pro
Billed yearly
$14.99/mo
$179.88 a year, Lex Pro plan −40%
Watch out: Fewer features than a dedicated editing tool, by choice. There is one paid tier, and the $30 of AI credits it includes each month is worth more than the subscription at either billing term, so what you are buying is model access more than software.
All plans (2)
Plan
Price
What you get
Free
$0
Free tier available
Lex Pro
$24.99/mo · $14.99/mo yearly
premium AI models including GPT-5 and Claude 4.1 Opus, $30 of AI credits included every month, much higher usage limits, priority support, early access to new features and a money-back guarantee. The annual plan opens on a trial where the monthly one subscribes straight away
By SudowriteSan Francisco, United States1 product across 1 category
Strong fit. Built for long fiction: it holds a story bible, keeps characters consistent across chapters, and suggests rather than replaces.
Free plan
No
Paid from the start
Month to month
$19/mo
Hobby & Student
Billed yearly
$10/mo
Hobby & Student plan −47%
Watch out: Paid from the start, though the trial takes no card. The tiers differ mainly by monthly credits — 225,000, one million and two million — rather than by features, so the question is how much you write.
All plans (3)
Plan
Price
What you get
Hobby & Student
$19/mo · $10/mo yearly
225,000 credits a month, for people writing for fun or for school
Professional
$29/mo · $22/mo yearly
1,000,000 credits a month, raised from 450,000 as this was checked, and pitched at a novel or a screenplay
Max
$59/mo · $44/mo yearly
2,000,000 credits a month, for authors publishing several times a year. Every tier carries the same story intelligence, style matching and continuity across a series, and all three open on a free trial that asks for no card
Two things separate these and both are on every card.
Fit
Whether a tool is built for this job, a strong fit for it, or
able to do it without that being its focus.
Free plan
Whether there is a tier you can keep using rather than a
trial that expires.
The order
Fit first, then a free plan, then alphabetical. There is
no score, no weighting we decline to publish, and nothing on this site a company can buy.
Questions
What is the best ai for screenwriting?
There is no single answer, which is why this page lists 4 rather than one: Sudowrite, Claude, ChatGPT, Lex. 3 of them are built for this kind of work rather than able to do it. Start with a free one.
Which of these have a free plan?
3 of the 4: Claude, ChatGPT, Lex. Free means a real free tier you can keep using, not a trial that expires.
How was this list chosen?
By hand, from the 750 products this site tracks, and it is checked against the catalogue on every build — a product renamed or removed breaks the build rather than quietly disappearing from here. Nothing on this site can be paid for: no listing, no position, no wording.