Liner Write is a Cursor-style writing agent for professional documents. Co-write business plans, proposals, reports, and more with an AI backed by the world's most accurate search (Liner Deep Research, 95%+ on SimpleQA). World-class output. Near-zero hallucinations.
Hi Product Hunt, I'm Jinu, co-founder of Liner.
You open a blank document. You know what you want to say, but you end up bouncing between ChatGPT, Google Docs, and five browser tabs, copying, pasting, rewording for two hours. The output is mediocre, and half of it is made up.
Sound familiar? This was us, too. And we've been building AI tools for 10 years, so we had no excuse.
So we built Liner Write. A Cursor-style writing agent for professional documents.
Just like Cursor lets developers co-write code with an AI inside their editor, Liner Write lets you co-write business plans, sales proposals, reports, blog posts, newsletters, and more, directly inside a clean writing environment.
What makes it different from just using ChatGPT?
1. Accuracy. Liner Write is powered by Liner Deep Research, our proprietary search engine that currently ranks as the world's most accurate AI search (95%+ on the SimpleQA benchmark, https://liner.com/learn/deep-res...). This means the documents Liner Write produces are grounded in real, verified information, not hallucinations.
2. Your workspace and your agent, in one place. With ChatGPT or Claude, you write in one tab and prompt in another, then manually stitch everything together. Liner Write is different. The agent lives inside your document. You can prompt, edit, and refine in a single environment, without ever leaving your writing flow. It's the difference between having an assistant in the room versus shouting instructions through a wall.
Why now?
Agents are already here, and they're transforming every workflow. But here's what most people miss. Documents are becoming the primary way we give instructions to, and collaborate with these agents. Documents are the new source of truth. The quality of what you write directly determines the quality of what agents do for you.
But the writing tools haven't kept up. We're here to fix that.
We'd love your honest feedback. What would make Liner Write an essential part of your workflow? Drop a comment, and we'll read and respond to every single one.
Try Liner Write for free at https://write.liner.com 👈
The Cursor analogy is apt but I'm curious how it translates to writing in practice. With Cursor, the interaction model is clear: tab-complete, inline diff, accept/reject. For code that works because changes are structural and self-contained.
Professional writing is messier. If I'm halfway through a 10-page proposal and I ask the agent to "make the competitive analysis more specific," how does it handle that? Does it rewrite the section in place with a diff view? Suggest edits inline? Or regenerate and let me compare?
The 95% SimpleQA accuracy is impressive for factual grounding, but the co-writing UX is what would keep me using it over just prompting Claude and pasting into Google Docs. Would love to hear more about how the agent interaction actually feels mid-document.
The "documents are the new source of truth" framing really clicked for me — I've been thinking about this a lot in the context of writing vendor proposals and internal strategy docs, where a single hallucinated stat can quietly tank credibility. Curious how Liner Write handles source attribution inline — like, can you actually trace a claim back to where it came from without breaking your writing flow? That transparency layer feels like it could be the thing that makes this trustworthy enough for high-stakes professional use.
Cool product, Jinu.
Curious: Does it work cross-device?
I use different devices (phone, laptop, tablet), so it would be cool if my context followed where I went.
Congrats on the launch! Super sleek product — love how it extends the Liner experience. I’m building a similar editor in Korea too.
