Tell Yogen what's on your mind — a new product, a price, a decision you keep going back and forth on. A whole room talks it through: what they'd love, what they'd question, where they'd walk away. You get an honest read in a few minutes, before you spend a penny.
No setup, no jargon. You say what you're weighing up, the room talks it through, and you get a clear, honest read. Same five steps every time.
Describe your idea, your product, or the decision you're stuck on — in your own words. No forms to fill in. If you've got more to share, like who it's for or what you'd charge, add it. The more you give, the sharper the read.
Fourteen voices, each thinking differently — a strategist, a sceptic, someone who knows the money, someone who knows people. They make their case, then push back on each other. They won't all agree, and that's the whole point.
After the experts, a much bigger crowd weighs in — different ages, budgets, and tastes — reacting the way people actually would if they'd stumbled across your idea. They never heard the experts. What they think is all their own.
All those voices get pulled together into something you can actually use. Where do people agree? Where do they split? What's the objection you didn't see coming? The strongest pushback is kept, not smoothed over.
You get a straight answer: how the idea landed, who's for it and who isn't, the risks worth watching, the strongest objections, and a short list of things to do next. No score-keeping dressed up as certainty. What you do with it is up to you.
Every session, all fourteen show up. They won't always agree with each other — and that's exactly why they're worth having.
Evaluates competitive positioning, total addressable market, and timing against macro conditions.
Argues the strongest possible case against your idea. Finds the assumption you haven't tested.
Models how real humans deviate from rational choice — loss aversion, status signalling, inertia.
Stress-tests unit economics, pricing assumptions, and the path to sustainable margins.
Interrogates identity, naming, visual language, and cultural resonance at first impression.
Assesses build complexity, technical risk, and whether the product promise is deliverable.
Surfaces legal exposure, regulatory headwinds, and category-specific restrictions that kill ideas quietly.
Reads the zeitgeist — what the culture is reaching for and what it's turning away from right now.
Challenges acquisition assumptions and models realistic customer growth trajectories.
Speaks for the end user — their real frustrations, existing habits, and threshold for switching.
Maps the competitive landscape and identifies where incumbents are most and least vulnerable.
Questions scalability, supply chain fragility, and the hidden costs of delivery at volume.
Probes the second-order effects — who is harmed, who is left out, and whether the trade-offs are defensible.
Does not advocate. Reads the full debate and distils where the council found consensus — and where it fractured.
The crowd never hears the experts. They react to your idea on its own — the way real people would, if they came across it tomorrow.
Different ages, budgets, tastes, and places — the same mix of people you'd meet in the real world. No two sessions draw exactly the same crowd.
Who would buy it. Who'd walk away. What they objected to. What they responded to. Whether your price held up. What assumptions they walked in with and how your idea landed.
Example crowd output — your simulation will reflect your specific idea and target market.
3 free simulations — no card required. Upgrade any time.
First simulation always free · No card required · Cancel anytime
Any decision with a market or audience at its centre. Product concepts, pricing changes, campaign angles, market entry, pivots, naming, positioning hypotheses. Yogen has been used for consumer apps, B2B SaaS, physical products, restaurant concepts, content businesses, and early-stage pitches. If someone has to react to it, it can be simulated.
Tell Yogen your idea and it gathers fourteen people around it — an investor, a doubtful customer, a regulator, someone who knows your trade — each arguing from their own angle. They draw on a deep understanding of markets and how people behave, plus anything you hand them: a plan, some research, a pitch. It runs on Claude, Anthropic's AI, and it thinks rather than trawls the live web — so it won't know yesterday's headlines, but it will tell you exactly what's worth going to check. (Want it grounded in fresh facts? Upload them, and the room reads every word.)
A single AI asked for an opinion gives you a single, consensus-shaped answer. Yogen runs up to 500 agents simultaneously — each with a distinct perspective, each instructed to disagree, challenge, and stress-test. The value is in the friction. You get dissent, minority views, and the objection you hadn't thought of. That's not something a chatbot can produce.
Most simulations complete in under 4 minutes. You can watch the debate live as it happens — the report appears automatically when the swarm reaches a verdict. Some simulations finish earlier than the maximum 6 rounds — if the swarm reaches a strong consensus (80%+ agreement) before round 6, the debate ends and the report generates immediately. A shorter simulation isn't a worse one — it means the swarm agreed quickly.
No — and that distinction matters. Yogen is a simulation tool, not a consultant. The outputs are AI-generated and intended for decision support and creative exploration only. Nothing on this platform constitutes professional, financial, legal, or business advice. It shows you what you might be missing. What you do with that is entirely yours.
Yes. Your simulation inputs and reports are private to your account. They are never used to train AI models, never shared with third parties, and never visible to other users. See our Privacy Policy for full details.
Yogen is built in the United Kingdom and processes data in accordance with UK GDPR. We collect only what is necessary to run your account and simulations — your email address, encrypted password, and simulation content. We do not sell data, share it with advertisers, or use it to train AI models. You can request deletion of your account and all associated data at any time by emailing michael@yogen.uk. Full details are in our Privacy Policy.
Yes. Run your original idea, address the top objections the swarm raised, then run the refined version. Compare the two reports to see how the verdict shifted. It's one of the most useful things you can do with Yogen.
Yes. All paid plans are monthly and cancel at the end of the current billing period with no penalty. You keep access to all your reports for as long as your account is active.
Your first simulation is free. Submit your idea, watch 500 agents convene, and receive a prediction report before you spend another hour on something the oracle would have challenged in three minutes.
Yogen is a simulation tool — intelligent cosplay for your idea. All outputs are AI-generated and intended for creative exploration and decision support only. Nothing on this platform constitutes professional, financial, legal, or business advice. The council is not real. The verdict is not a guarantee. What you do with the signal is entirely your call.