Assertio.ai

Assertio.ai is an AI content platform built around one question: does this sentence actually say something a reader or an AI system can check? Most writing tools optimize for surface signals, keyword coverage, word count, readability scores. Assertio works one layer down, scoring every sentence on whether it makes a real, verifiable claim. How it works Give it a keyword and a page type, or point it at a URL of a page you already have. Six agents run in a single pass: research pulls the live SERP, fan-out expands the query into its full intent cluster, a brief gets built, a draft gets written under Assertio's content contract, a critic agent scores every claim, and a final pass cuts the filler. The result is a scored draft in 15 to 20 minutes, not a blank page and not a week waiting. You can also run an audit on content you already have. Point it at a URL and Assertio breaks the page into individual claims, scores each one across the IQS dimensions, measures cohesion separately, and flags weak sentences and contradictions. Run it across multiple URLs and it finds duplicate or conflicting claims across your whole site. The scoring engine Every sentence gets decomposed into zero or more standalone, type-tagged claims (factual, opinion, causal, definitional, comparative, procedural), with hedging and filler stripped out. Each claim is placed in vector space and checked against every other claim on the page, and across your library, so redundant claims, elaborations, and outright contradictions surface automatically. Six weighted dimensions, verifiability, specificity, objectivity, quantifiability, consensus, and one more, roll up into a single Information Quality Score (IQS) per claim and per page. Cohesion is scored on top of that: connectives that carry real logical weight get credit, empty transitions get cut, and low-scoring sentences get rewritten. The foundation This isn't a prompt template. It's built on established linguistics: Searle's speech act theory, which treats a sentence as either performing an assertion or performing nothing; and Kintsch and van Dijk's propositional text analysis, which decomposes text into the claims it carries and measures how densely it carries them. Semantic similarity via vector embeddings ties it together, catching the same point made twice and two points that can't both be true. Why it matters now Search increasingly rewards depth over word count, and answer engines like AI Overviews, ChatGPT, and Perplexity only cite pages that give them something specific to quote. A hedged, generic sentence gives an answer engine nothing to lift. A concrete, checkable claim gets cited. Assertio is built to produce the second kind of sentence by default, and to show you the score so you're not debating a vibe with your editor, you're pointing at a number. Who it's for Freelance SEO writers and consultants who need a defensible, client-facing quality artifact, not just a finished draft. Small agencies managing multiple client portfolios who need a consistent quality bar across writers without a full-time editor reviewing every piece. Anyone producing AI-assisted content at volume who's tired of output that reads fine but says nothing. Status Assertio.ai is prelaunch, in active development, with free credits available on signup, no card required.