Your users don't lie.
They just can't be honest.
Social pressure, cultural barriers, and personality bias distort your research, especially in the concept definition phase, when honest feedback matters most. AI personas have none of those filters.
The problem
The problem isn't dishonesty.
It's human nature.
In focus groups and user interviews, participants want to be helpful. They don't want to seem negative or hurt the researcher's feelings. Cultural norms, social anxiety, and personality type all push responses toward the positive, regardless of what they actually think.
This bias is most damaging in the concept definition phase, when you most need signal and least need noise. AI personas don't have social anxiety. They don't have cultural filters. They just react.
How it works
Pick a persona. Start talking.
Voice
Real-time voice conversation
Talk to your persona as you would in a real interview. They interrupt, push back, and ask the questions your real users never would.
Chat
Text-based feedback
Prefer typing? Chat mode gives you the same brutal honesty in writing. Share a link, a screenshot, a concept, and get a reaction.
Mobile
Works on any device
No app to install. Open it on your phone during a commute, on a tablet in a workshop, or on your laptop between calls.
Alex
Canadian student · Milan
The conversation
No filter.
No social pressure.
Just feedback.
Each persona has a backstory, a set of frustrations, and zero incentive to spare your feelings. They challenge your assumptions, poke holes in your logic, and ask the questions your real users never voice.
You can set the Brutality Level, from Mom (your idea is brilliant) to Fatality (the internet troll treatment), before each session.
The interlocutors
11 personas. Zero filters.
Alex
Canadian student · Milan
Andrea
Brazilian student · Polimi-bound
Jan
Swedish consultant · frequent traveler
Marco
CEO · Nesthive Italia
Prof. Ferretti
Rector · Università di Milano
Roberto
Operations · CasaStudenti
Elena
CEO · Valorian Hotels Italia
Gianluca
Airbnb Host · Milan
Liis
Estonian traveller · solo
Kavya
Indian student · Milan
Rinaldi & Venturi 🇮🇹
CMO & Head of Brand · Game Training
We don’t believe synthetic users replace real ones. But in the early stages of concept definition, the social pressure, personality, and cultural barriers of real users often make them less useful than a well-designed AI persona. Not because they’re lying. Because they’re human.
The Brutality Level
You choose how much truth you can handle.
Drag the lever. Same persona, completely different energy.
For researchers
Create personas tailored to your research
Beyond the 10 public personas, researchers can create custom personas specific to their study context. Write a system prompt, and the platform automatically generates a portrait and assigns a voice.
- Write a system prompt with identity, personality, and context
- Avatar generated automatically in the platform's illustration style
- Personas are private, only visible to your group
- Unlimited personas on the Research plan
Two ways to use Brutal Feedback
Same engine. Different goals.
Whether you're validating a new product idea or training your team to pitch better, Brutal Feedback has a mode for you.
Validate concepts before you build.
Talk to AI personas that represent your target users — students, business owners, frequent travelers, hotel managers — and get the unfiltered reactions you'd never hear in a real interview. Ideal for product designers, UX researchers, marketers, and startup founders in the early concept phase.
- 10 public personas across student, business, and traveler segments
- Voice and chat modes for flexible research sessions
- Brutality Level slider from diplomatic to fatality
- Custom personas for your specific research context
Best for
Product designers · UX researchers · Startup founders · Marketers
Train your team to pitch like executives.
A dedicated rehearsal mode for pitch and presentation training. Perfect for companies, business schools, and coaches who want to give their teams a safe space to practice executive communication — and get scored on it.
The scoring system
Clarity
Is your message clear and structured?
Confidence
Do you own the room?
Relevance
Are you speaking to the right priorities?
Handling objections
Can you hold your ground under pressure?
- Rinaldi & Venturi: a CMO and Head of Brand who score your pitch
- Ideal for companies, business schools, and executive coaches
- Designed for team rehearsal — not just solo practice
- More languages and personas coming soon
Best for
Sales teams · Business schools · Executive coaches · Startup accelerators
Ready to hear the truth?
Join the beta and test your concept with personas that have no reason to lie to you.