Your writing, your words

Kantoku is an AI writing coach that asks the right questions, and never writes a word for you.

Who it's for


Researchers & academics

Write papers with AI assistance you can defend, with a provenance trail which proves the work is yours.

Graduate students

Have a supervisor available at 2am who asks the questions to sharpen your thesis.

Bloggers & content writers

AI-assisted writing that still sounds like you. Your voice, your quirks, your fingerprint.

Anyone who writes

If you care about your writing being yours, Kantoku is how you use AI without losing yourself.

Trusted by students at

How Kantoku works


Interrogative coaching

"Have you considered the counterargument?" not "Here's a better sentence." Kantoku's AI reads your writing and asks questions that help you think more clearly, identify gaps, and strengthen your argument. It never suggests text, never inserts fragments, never rewrites your prose.

Markdown & LaTeX native

Write equations, citations, and structured documents in the formats academia already uses. No fighting with a word processor. First-class support for the tools researchers actually need.

Git-based provenance

Every change is tracked. Full version history of your document's evolution. In an era where "did AI write this?" is the wrong question, Kantoku lets you show how your document was written. Essential for academic integrity.

The difference


Other AI writing tools

  • "Here's a better way to phrase this"
  • Suggests sentence fragments
  • Rewrites your paragraphs
  • Your document contains AI-generated text
  • AI as ghostwriter

Kantoku

  • "What's the core claim you're making here?"
  • Asks clarifying questions
  • Challenges your reasoning
  • Your document contains only your words
  • AI as coach
"The AI helped you think; it didn't write for you."

Start writing. Stay yourself.

Free plan available. No credit card required.