Structure & Planning AI · 6 free runs per connection · no cap on Pro/Ultra

AI Query Letter Generator

Fill in your hook, synopsis, comps, and bio — free AI drafts two query letters you can edit before sending.

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What a query letter contains

The generator drafts each part from your fields; you edit before sending.

HookOne or two sentencesThe character, the situation, and what is about to go wrong.
Pitch150–200 wordsConflict, choice, and stakes — not the ending.
Book detailsOne paragraphTitle, genre, word count, and one or two verified comp titles.
BioTwo or three linesRelevant credits or experience; it is fine to keep it short.

Next: Comp title finder · Agent synopsis generator · Query letter builder (no AI) · AI book title generator

About this tool

Query letters are a specialized sales pitch — hook, synopsis, comps, bio, and professional tone in under one page. Enter your materials and Kestrel — Free drafts two variants (standard and tight) you can personalize before sending to literary agents. Always review and edit every word; treat output as a first draft, not a send-ready letter.

What you can do

  • Two query variants — standard layout and tight one-page version
  • Inputs for title, genre, word count, hook, synopsis, comps, and bio
  • Kestrel — Free drafting with fiction query conventions built in
  • Copy-ready output for personalization per agent
  • Pairs with query letter builder for final formatting control
  • Free tier with several generations per connection; sign in to save drafts
  • Only your pitch text is sent for generation — not your full manuscript

Planning tools and long-form structure

Novels fail when structure is improvised scene by scene. Beat sheets, chapter planners, and blurb builders help you decide pacing and reader promises before you spend tokens on prose. Pair these tools with an outline in Entangled Text so generation follows a spine.

AI book outline generator · AI novel writing workflow · Write a book with AI

How to use it

  1. Enter book title, genre, and accurate word count.
  2. Paste your hook and short synopsis — include protagonist, stakes, and ending direction.
  3. Add comparable titles and a one-line author bio if ready.
  4. Click Generate query letters and compare standard and tight variants.
  5. Copy your preferred draft, edit every word, and personalize the agent salutation before sending.

Tips for fiction authors

  • Never send an AI query without editing voice and story-specific details. Agents recognize generic phrasing instantly.
  • Comps should be recent, real titles readers know — not your wish list of bestsellers from a decade ago.
  • Synopsis in a query gives ending direction without spoiling the final twist. Tell Kestrel — Free whether your ending is hopeful, tragic, or open.
  • Feed the blurb builder output into the hook field for consistent pitch language across query and KDP listing.
  • Use the query letter builder after editing to reformat your polished text into a clean copy-ready layout.

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Common questions
Is this really free?

Yes. Guests get several free generations per connection via Kestrel — Free. Sign in to save drafts across sessions.

Will agents know it is AI-written?

Generic AI phrasing stands out. You must edit the result for voice, specificity, and accurate comps before sending.

Is my manuscript uploaded?

No. Only your title, genre, hook, synopsis, comps, and bio are sent for generation — not your full novel.

Why two query variants?

Standard follows conventional section order; tight compresses for agents who prefer shorter pitches. Edit whichever fits your target better.

Does this submit to agents?

No. It drafts text only. You copy, edit, and submit manually through each agent's preferred channel.

How long should a query letter be?

One page — usually about 250 to 350 words: a hook, a short pitch of the main character, conflict and stakes, the title, genre and word count with one or two comp titles, and a brief bio. Always follow each agent’s own submission guidelines.

Where do I find comp titles for the query?

Use the comp title finder (/tools/ai-comp-title-finder), which checks each suggested book against Open Library and marks it verified or unverified, then read the comps before you name them.

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