Marketing & GrowthFree
SEO Blog Post Writer for a Target Keyword
Name the search you want to rank for and get a complete, sourced post built to beat the pages that rank now.
River's SEO blog post writer starts where a good human writer would: with the pages that already rank. It reads the current top results for your keyword, notes the format that wins and the questions every result answers, then writes a complete post that covers the same ground and adds what they miss. You get a title tag, a meta description and a URL slug, the full post with headings, and a short list of claims to confirm before you publish.
Most AI blog writers take a keyword and produce 2,500 words from memory. The draft sounds fluent, cites nothing, and reads like every other page on the topic, which is exactly what Google's guidance warns against. The difference here is the input. Tell River what you know that the ranking pages do not, such as a number from your own customers, a mistake you see every week or an opinion you can defend, and the post is built around it.
Built for founders and small marketing teams who need to publish steadily without a writer on staff, and for freelancers who want a researched first draft instead of a blank page. Each run writes one post for one search, so it fits a weekly publishing rhythm. Find the keyword first with the content gap analysis or the Search Console keyword map. When an agency or freelancer writes for you instead, the draft review against a brief checks what they deliver.
What Google says about long, AI-assisted posts
Length is not the goal. Google's guidance on helpful content asks whether you are writing to a particular word count because you heard Google prefers one, and answers its own question: it does not. A long post ranks when the search needs a long answer, such as a step-by-step guide or a comparison of several options. When the results page is full of short definitions, a 2,500-word post on the same term is padding, and readers leave before the useful part.
Using AI is not the problem; using it to mass-produce pages is. Google's spam policies describe scaled content abuse as many pages generated for the primary purpose of manipulating search rankings rather than helping users, and name generative AI tools used that way as an example. One carefully researched post a week, edited by someone who knows the subject, is a different activity from a thousand pages generated from a keyword list, and the policy treats them differently.
The quickest way to add what the ranking pages lack is experience. The same helpful content guidance asks whether a page shows first-hand expertise, for example from having actually used a product or visited a place. For a small business that usually means three things: a real number from your own work, a mistake you see customers make, and a clear opinion about what to do. Even one of those, written plainly, gives readers a reason to prefer your page.
How it works
Name the keyword
Type the search you want to rank for, and anything you know that most articles don't.
River reads the results
The current top pages for that search: their format, the questions they answer and what they miss.
Get the post
A complete post with headings, sourced facts, a title tag and a meta description, ready to edit.
Fill the gaps
Answer the marked prompts in chat and River works your examples into the draft for you.
What you get
- A title tag, meta description and URL slug written for the keyword and checked for length
- The format chosen from what currently ranks: a how-to, a list, a comparison or an explainer
- An opening that answers the search in its first few sentences, before any background or history
- Every checkable statistic linked to its source, and anything unverified marked for you to confirm
- Your own examples and numbers worked in, with marked prompts where only your experience will do
- A short pre-publish list of claims to confirm and pages on your site worth linking
Common questions
How long will the post be?
About 2,500 words by default, because most competitive how-to and comparison searches need that depth. If the pages that rank are short, the post will be shorter and River says why. Google has said it has no preferred word count, so length follows what answers the search rather than a target. Ask for a longer or shorter version in chat.
Will Google penalize a post written with AI?
Google's policies target pages produced mainly to manipulate rankings, not the use of AI itself. A single post researched against the live results, checked for facts and edited by someone who knows the subject is the kind of page its guidance calls helpful. Adding your own experience before you publish makes it stronger for readers as well as for search.
Where do the facts and statistics come from?
From sources River reads while researching the post, each linked inline so you can check it. River does not invent statistics, studies or quotes. If a claim cannot be traced to a source, it is left out or marked for you to confirm. Check each linked figure before publishing anyway, because a source can be out of date.
Can I give it a full content brief?
Yes. Paste or attach a brief and River follows it: the outline, the word budget, the sources and the audience you set. Without one, River builds its own plan from the ranking pages. If your team writes briefs regularly, the content brief pack gives you a standard one to fill in, and the finished post can be checked against it.
Can it write in our brand voice?
Paste a page or two of writing you like, or give your website address, and River matches its sentence length, vocabulary and formality. Without a sample it writes in plain, direct English for a general business reader. It keeps your spelling, American or British, and never adds claims about your company that you did not give it.
What about pillar pages and topic clusters?
This writes one post for one search. If you are planning a whole hub, with a main guide and the shorter posts that link to it, the pillar and cluster build pack maps it first. Then write each post here, one keyword at a time, and link them the way the plan says.
Sources
Built by
Chandler Supple
Co-founder & CEO, River
Chandler has spent the last six years working in AI, building tools for millions of users and Fortune 100 companies. In 2025, he co-founded River to build a new kind of operating system for AI agents.
SEO Blog Post Writer for a Target Keyword
Describe what you need, add any files you have, and your workspace opens with the work already underway.