For thriller writers
Plan and write your thriller with AI
Pitch the threat and the clock in a sentence or two. FictionAI drafts a story bible (world, cast, chapter outline with hooks) that you edit, then writes each chapter with it in view.
3 books free, no credit card. AI use is billed by OpenRouter to your own account.
What you get for a thriller
An outline built on hooks
Every outline chapter has a summary, key events and a closing hook. Reorder, add or cut chapters to tighten the pace before you write.
Multiple points of view
Fine-tune offers first person, close third, omniscient or several characters taking turns.
An antagonist with a plan
The cast includes your antagonist with a backstory, motivation and arc, so their moves make sense chapter to chapter.
Thriller tropes
Chips from the Thriller list: race against time, cat and mouse, double cross, government conspiracy, corporate espionage and more.
Twists you plan
Put the twist in the outline and the premise; every chapter is written from them and the chapters before, so the setup is on the page.
Revise the action
Rewrite a selected passage with an instruction ("shorter sentences, faster") or revise a whole chapter.
Subgenres
Thriller, Psychological Thriller and Crime are built-in genres. Name any other subgenre in the pitch and notes.
Psychological
A built-in genre with its own defaults.
Crime
A built-in genre; pair it with detective or heist tropes.
Conspiracy
The government conspiracy trope is in the Thriller list.
Espionage
Corporate espionage is a trope chip; describe the agencies in the world card.
Legal or medical
Type the subgenre as your genre and add the procedure details you want in the notes.
Techno-thriller
Put the technology and its limits in the world rules.
How it works
- 01
Pitch
Choose Thriller, pitch the threat and the stakes, and pick tropes and point of view.
- 02
Story bible
One click builds premise, title, world, cast and outline. Edit anything inline.
- 03
Write
Generate chapters one at a time, or queue all remaining chapters and stop at any point.
- 04
Export
Download the manuscript as DOCX, PDF, Markdown, plain text or HTML.
Questions
Can AI write gripping thrillers?
It can write a fast first draft from a plan you control. FictionAI outlines the book first, with a hook at the end of every chapter, and writes one chapter at a time so you can tighten each before moving on. Quality depends on the model and your edits.
How does FictionAI handle pacing?
Through the outline: each chapter has key events and a closing hook, and you can reorder, add or remove chapters. The story shape in Fine-tune (for example Save the Cat for a commercial pace) sets how the outline is built.
Does it support multiple POVs?
Yes. Set point of view to "several characters take turns" in Fine-tune, and mark whose view each chapter follows in the outline.
What thriller subgenres are supported?
Thriller, Psychological Thriller and Crime are built-in genres with their own defaults. For spy, legal, medical or techno-thrillers, type the subgenre and describe it in the pitch and notes.
Can I write action sequences with AI?
Yes. Chapters include action when the outline calls for it, and you can rewrite any passage with an instruction such as "make this chase shorter and more physical".