Radical Personas is a synthetic user research tool from Austria. It puts websites, ads, emails, and product ideas in front of AI-modeled synthetic personas — and returns Scores, reasoned feedback, and a PDF report in about 20 minutes. It is built by Radical Personas GmbH in Linz.
Radical Personas is for anyone who wants to know how their audience reacts before launch: founders, freelancers, and small brands without a research budget, as well as UX, product, and marketing teams that need fast, reasoned audience feedback for early iterations.
It is not a replacement for final user research — it is the fast first check that comes before it, so you decide before real testing budget is committed.
Eight object types: websites (including landing pages), ads, emails and newsletters, logos, social media posts, product ideas, Proposal Checks, and Ask the Room — one question put to a panel of Personas for a quick Sentiment Snapshot. Every Review returns Scores per criterion, free-text answers in each Persona’s voice, and an AI summary.
Websites also cover multi-page user journeys (from the Pro plan). The result comes as a PDF report you can share.
ChatGPT gives you one one-dimensional answer per prompt. Radical Personas combines eight psychological layers per Persona — biography, Big Five personality, cognitive biases, cultural context, and more — in a structured, internally validated interplay. The result is reproducible Scores and reasoned quotes, not a single smooth answer.
Radical Personas complements traditional market research — it doesn’t replace it. The difference is speed and cost: about 20 minutes instead of 42 days on average (Dscout), and €149 net a month for 25 Reviews instead of €2,000 to €15,000 per study. For early iteration, that is the decisive advantage.
Traditional studies deliver a depth that a synthetic test doesn’t replace — especially for final validation.
The free plan is free: 2 Reviews per month, 2 Personas per Review, no credit card. Pro is €149 net a month for 25 Reviews — under €6 each.
Human behavior is complex and context-dependent, and synthetic personas capture only part of that; for niche or specialized audiences the modeling becomes patchy, and they don’t replace real user research for final validation (Rosala & Moran, Nielsen Norman Group, 2024). Radical Personas’ methodology is not yet peer-reviewed; we communicate variance and limits openly rather than hiding them.
That is why we position the tool as a complement — not a replacement for studying and speaking with real people.
Three of the eight layers are externally peer-reviewed: Big Five (validated across 56 nations, n=17,837 — Schmitt et al., 2007), cognitive biases (Kahneman & Tversky; Kahneman, Nobel Memorial Prize in Economics 2002), and cultural context (Hofstede). A Stanford HAI study (Park et al., 2024 — preprint, n=1,052) found ≈85% replication accuracy, benchmarked against the test-retest reliability of human self-responses.
No. Your content is not used to train the underlying language models. Our contracts with all model providers rule out training on your data. Where contractually possible, processing runs through the providers’ EU endpoints.
For Enterprise customers, an on-premises deployment is available on request — the data flow then stays within your own infrastructure.
In Austria and the EU, GDPR-compliant and compliant with the Austrian Data Protection Act (DSG). Where contractually possible, Radical Personas uses the model providers’ EU endpoints (such as Bedrock EU); if processing takes place outside the EEA, EU Standard Contractual Clauses or the EU-US Data Privacy Framework secure it.
Free plan, no credit card. Your first result in about 20 minutes.
No credit card required · Cancel anytime · EU-hosted
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