Liner Write
Cursor for professional writing
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Jinu Kim

Liner Write - Cursor for professional writing

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Liner
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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.

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Jinu Kim
Maker
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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 👈
Krupali Trivedi
@jinukim21 This looks very nice to be honest! I work with a lot context switching and different kind of things almost everyday. Most tools I use, they give me answers/blogs and they are ‘okaish’. How is Liner able to produce better copies in writing style and not talking about the facts written here.
Jinu Kim
Maker

@krupali_trivedi Hi, we've been working on writing since we've launched Liner Scholar ( scholar.liner.com ) and helped researcher's academic research. There were many cases where we had to manage a very long context, various types of writing(thesis, evaluation, entire paper, peer review, ...) and we've built bunch of internal tools and internal agents to handle those.

We're using the same tech for Liner Write and that's why it's very strong in logical thinking and logical writing.

Krupali Trivedi
@jinukim21 that makes a lot of sense! thanks for sharing.
Brian Woo
Maker

Any feedback on Liner Write would be greatly appreciated ❤️.

Michael Vavilov

Does it work for copywriting? Blog-post, for example?

Jinu Kim
Maker

@michael_vavilov Liner Write strives in logical writing. So you can use Liner Write for blog-post, newsletters, sales proposal, resume, developer docs, and so on.

Copywriting will be more of a creative work. We'll try to cover that later but for now, it's very powerful in logical writing!

Minkyu Lee

Congrats on the launch! Super sleek product — love how it extends the Liner experience. I’m building a similar editor in Korea too.

Jinu Kim
Maker

@bigmacfive 

Thanks! We found that a lot of the users of our original product Liner Search(https://app.liner.com) were searching to finish writing a professional doc. So we've decided to provide an agent for that.

Looking forward to your product launch as well!

Will Carter

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.

Jinu Kim
Maker

@wcrtr making every AI-generated line transparent is literally the mission of Liner.

Liner's original product is Liner AI Search(https://app.liner.com) and you can experience just that.

With Liner Write, we've designed the product to be more focused on co-writing experience with AI, so line-by-line citations are not provided by default.

But still, if you drag a sentence on the editor, we provide a 'add citation' feature where you can search for back-up citations. This one does still need improvement though 😅. We're working on it.

In the meanwhile, would love to hear your experience on Liner Write AI drafting and co-writing :)

Thanks!

Leo

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.

Megan Bowers

@leonardkim I'm curious about this as well. I tried it once asking to refine messaging an existing document but it still created a new one, I didn't see the option to have in-line edits/suggestions or have a comparison.

I do like the UI better than gemini in google docs!

Jinu Kim
Maker

@megan_bowers1 Thanks Megan, we'll try to make Liner Write be more easy to use, and the agent at the back-end smarter to cover the workflow you've mentioned as well!

For now, if you'd like to experience in-line suggestions, you can drag the sentence on the document, and add to chat to get suggestions. Please give it a try!

Megan Bowers

@jinukim21 oh cool, I'll try that!

Jinu Kim
Maker

@leonardkim great question.

As you can see at the demo video 00:15 (a link here! https://youtu.be/dvbPqJt1FYk?si=Rai2OR-urG9V9oE8&t=15 ), Liner Write will provide you the section with a diff view, suggest edits in-line, and also you can accept it or discard it.

I personally had a very hard time working with bunch of AI writing tools where what I want to fix is this sentence or this paragraph and the AI is just refreshing the whole content and only paraphrasing a bit. It was very annoying.

So we've built this editor + in-line edit suggestion UX.

Please try it out and let us know your experience!

Sayem Faruk

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.

Jinu Kim
Maker

@sayemfaruk Thanks for the great question. Liner Write currently covers laptop/tablet web. Since it's based on Liner account, the context will follow among different devices, but we'll have to work on a mobile experience to make it more seamless.

Please try Liner Write on laptop/tablet web and give us a feedback! Really appreciate it!

Kshitij Mishra

keep making such products like these!

Jinu Kim
Maker

@kshitij_mishra4 Thanks! Your kind words really help :)

Nelson Cho

Looks promising!! Go Liner!

Mykyta Semenov 🇺🇦🇳🇱

Congratulations on the launch! Which languages are supported?

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