An AI writing tool that doesn't write.

The first time I watched Sound of Metal I was blown away. The sound design. The journey of the main character. How half of the movie was "silent" but I was still glued to the screen. I came away with a deeper understanding of what it meant to lose your entire identity, and also the very mundane ordinary experiences of the deaf community, and also learning how to find peace through stillness.

That's all because Darius Marder and his team had something specific to say and knew exactly how to say it. A point of view so focused, a vision so singular, it became universal.

Voice is irreducible. Not plot, not structure: voice. The accumulated weight of everything someone has seen, felt, cared about. Something developed over time, relentlessly pursued, draft after draft, film after film. It cannot be borrowed or approximated.

Yet it's what holds culture together. When we watch the same films and argue about the same characters, we are briefly inside the same singular vision of what it means to be human. That connects us more than we realize.

Now imagine Sound of Metal (or any movie that had a profound effect on you) generated and personalized for each viewer. Dialed into your preferences. Tuned to your existing beliefs. The story intended to crack you open just reflects you back to yourself. Further entrenching, isolating, and dividing ourselves.

That's where AI filmmaking is heading. And it should alarm every writer today.

There are AI tools right now writing scenes, generating dialogue, producing full screenplays on nothing more than a single logline. I've used them. The work ends up hollow, flat. It sounds like everything and says nothing. But the deeper problem isn't the output. It's what happens to you. The more you let these tools do, the further the work drifts from you, the fainter your voice comes across on the page.

But I use AI every day. Research. Brainstorming. Automating tedious tasks like pulling together facts about the LA massacre of 1871 from every angle into a single document so I can stay in flow state while I reason about my characters' backstory, motivations, and goals. Used this way, AI is genuinely useful — not because it thinks for me, but because it frees me up to think, to ensure my desired emotional impact on viewers lands.

AI to help research and brainstorm is different than AI that ghostwrites. One helps access your voice, one replaces it.

I couldn't find a tool that understood that distinction. Every AI writing tool I've tried wanted to do too much. None of them trusted the writer to be the writer. So I built one that does.

Koto reads your script, your notes, your characters, your bible and thinks alongside you. When you're stuck, it asks questions. It thinks about your story the way a great script editor would — structure, character, stakes, whether the film you're imagining in your head is what the reader sees too.

Your drafts live on your machine. There is no "save to cloud". And we will never train AI on your work. What you're writing is yours entirely.

Koto is for writers who care about craft more than output. Writers who want to use their voice, not outsource one. Writers who are skeptical about what AI is doing to our industry (good instinct).

Generating words is the easy part. The hard part — figuring out what you're actually trying to say — that's the writing.

That's yours.