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Create a project and point it at your site
Assertio reads your website and drafts your brand file from it, so everything written later sounds like you and stays grounded in what you actually do.
Create content that ranks in Google and gets cited by AI search
Your content deserves to be heard. For that, it has to say something first. Six trained AI agents make sure yours does.
5 free credits · No card · Cancel anytime
The problem
If you can smell AI slop from the first paragraph, so can Google.
You ask a tool for an article and get 1,200 words that say nothing. “In today's fast-paced digital landscape...” Delete. “It's important to note that...” Delete. You spend an hour fixing it, the facts are vague, and half the sentences could sit on any page on the internet.
If your content doesn't rank and no AI answer ever quotes it, that's because there's nothing there to quote. Assertio fixes that by making your content hard to ignore.
The method
Backed by linguistic science and fifty years of speech act theory. That is what makes it different.
A sentence either performs an assertion or it performs nothing. Assertio keeps the ones that assert and cuts the ones that only sound like they do. Two sentences on the same topic, one of each:
Sounds like an assertion
“Cold brew coffee has become increasingly popular among coffee enthusiasts due to its smooth taste and unique brewing process.”
no claim · nothing to check · nothing to cite
Performs one
“Cold brew has 67% less acidity than drip coffee, which is why it is gentler on sensitive stomachs.”
✓ verifiable claim · an AI answer can quote this
Two ways in
Start from a keyword, or from a page you already have.
Write from scratch
Give it a keyword. Get a researched page.
- Researched against the live search results, not a blank page
- The query expanded into its full intent cluster
- Built around the angle the ranking pages leave uncovered
Rewrite what you have
Point it at a URL. Watch the score move.
- The page broken into the claims it actually makes
- Every sentence scored, the weak ones diagnosed
- Rebuilt around real claims, in the editor, ready to edit
How it works
Setting up is simple
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Give it a keyword, or a URL to rewrite
Start a page from scratch on a keyword, or hand it something you already published and let it rebuild the page around real claims.
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Six agents build the page
They pull the live search results, expand the query into its full intent cluster, draft under the claim contract, and score every sentence before you ever see it.
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It lands in the editor
The finished page opens in an editor you can work in. Change anything, and add internal links with the Contextualizer, which proposes targets from your own sitemap.
Speed
It takes 15 to 20 minutes, because it works
The six agents run in a single pass. Assertio pulls the live SERP, expands the query, drafts under the contract, scores every claim, and cuts the filler before the page ever reaches you.
- 01Research
- 02Fan-out
- 03Brief
- 04Knowledge
- 05Draft
- 06Critic
What you get
Everything that is live today, and everything landing next
- Write or rewrite a full page, from a keyword or a URL, researched against the live search results
- Every sentence scored, across nine dimensions, from assertion density and entity coverage to search intent, structure and repetition
- The Contextualizer, internal links proposed from your own sitemap, with anchor text taken from what you already wrote
- A brand file drawn from your own site, so the claims on the page are yours rather than invented
- Cross-article findings, what the pages inside a project say about each other
Coming next
- Publish straight to your CMS from the editor
- Assertio Core analysis on any page you point it at
- Sitewide contradiction checking across your whole library
- Image generation for the pages you write
- Batch page creation
Early-access accounts get each of these first, at the price they joined on. Claim your spot
How it differs
Already looking at other AI writers? Here is the difference.
Most tools work on the surface: the words on the page and how many of them match the query. Assertio works one layer down, on whether each sentence makes a claim a reader and an answer engine can check.
Other AI writers
Assertio
What it optimises for
Fluent text that hits a word count and a keyword list.
One rule: every passage carries a claim, or points to one that does.
What it measures
Length, keyword coverage, a readability grade.
Whether each sentence says something, scored across nine dimensions.
Where the method comes from
Prompt templates, tuned by feel.
Speech act theory and propositional analysis, fifty years of it.
AI answers
Written for the classic ten blue links.
Written so an answer engine can lift a specific line and cite it.
Internal links
Anchor text invented to fit the target.
Anchors taken from your draft, targets from your own sitemap.
Early access
Join now and you deal with me directly.
Every early-access account gets
- An onboarding call with me to set up your first project
- Priority access to every future beta release
- Support straight from me, the person building it
Fair warning
Assertio is not for everyone.
- Not for you if you want 100 posts a day on volume alone. Assertio is built for pages that say something, and it takes its time doing it.
- Not for you if you want to publish untouched. The page lands in an editor, and it is better for the ten minutes you spend there.
- Not for you if your niche has no facts to claim. Pure vibes content gives the claim engine nothing to hold on to.
FAQ
The questions writers actually ask
Is this just another AI writer?
No. Most AI writers optimise for sounding fluent. Assertio writes under one rule: every passage carries a verifiable claim, or points to one that does. Six agents research the live search results, draft, and check the page, and every sentence is scored across nine dimensions of quality. Filler that says nothing is cut before you ever see it.
What about Claude's watermarks?
Assertio runs on Anthropic models, and Anthropic now watermarks Claude's text output using the SynthID-Text method, applied globally for EU AI Act compliance. So yes, text that comes out of Assertio can carry that watermark, and Assertio makes no attempt to strip it. What a watermark records is that a model was involved in producing the text. It is not a ranking signal and not a penalty. Google's stated position is that it rewards helpful content and demotes unhelpful content however it was produced, and a page built out of specific, checkable claims is the helpful kind. Editing in the editor changes the text as you go, and a heavy rewrite will degrade a watermark, but that is a side effect of editing rather than the point of it.
Will Google penalise this as AI content?
Google's published position is that it rewards helpful content and demotes unhelpful content, however it was produced. Thin, generic AI filler gets hit for being unhelpful. How it was produced is beside the point. Assertio is built to produce the opposite: specific, checkable claims a reader and an answer engine can use.
What if it gets a fact wrong?
Claims are researched against live sources and grounded in the brand file drawn from your own site, and the finished page lands in an editor rather than going anywhere on its own. Nothing publishes without you. The claim-based structure also makes an error easier to catch: a sentence that asserts something specific is checkable in a way that vague filler never is.
What is the Contextualizer?
Internal linking that reads your sitemap rather than crawling your site. It indexes your URLs, matches each passage of a draft against that index, and proposes a link you accept or reject one at a time. It never writes anchor text: it selects a span that already exists in your draft, so the anchor stays in your voice. If your URLs carry no meaning, it tells you so instead of inventing matches.
Can I publish straight to my CMS?
Not yet. Today the finished page opens in the Assertio editor and you take it from there. A direct CMS hook is next on the list, and early-access accounts get it first.
Do I need a card to try it?
No. You get five article credits free, no card. If you pick a plan later you can cancel anytime from your dashboard, and the subscription runs to the end of the period you paid for.
Who is behind this
Ten years in SEO, and the same problem every week.
Lum Kamishi
Lum has spent more than a decade in SEO, leading large-scale technical work with a focus on site architecture and content at scale. He deals with thin, say-nothing content every working day, and Assertio is the tool he built to fix it: one that scores writing by what it actually says.
See more of his work →Get started
The early bird gets the worm
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