Every business
needs a board.
Most can't afford one.
Cerno seats a panel of specialist advisors around your decision. They challenge your assumptions, argue the options and put a vote on the record — and you walk away with an Executive Decision Brief you can act on. No board seats. No equity. Nobody to convince.
cernō · Latin — to sift, distinguish and decide.
You're not short of opinions. You're short of someone who'll disagree.
Running something small means every call lands on you, and the only person stress-testing it is the person who came up with it. Friends are supportive. Forums are noise. A chatbot agrees with whatever you typed in. Cerno does the one thing that's missing: it seats people who push back, makes the risks explicit, and writes the reasoning down — so in six months you can see not just what you decided, but why.
You're allowed to disagree with your board.
A verdict you can't argue with isn't advice, it's a horoscope. When the brief lands, challenge it. Correct a number they got wrong, contest an assumption, or press the advisor who voted against you. The board reconsiders and issues a revised brief with the change on the record: who moved, what moved them, and whether confidence went up or down.
And if you push without evidence, the brief says so. A board that folds the moment you lean on it is worth nothing.
How Cerno works
Put the decision
One sentence is enough. Add context and constraints if you have them — the board will tell you what it's missing if you don't.
Seat the board
Strategy, finance, risk, the customer, your future self. Pick your panel, or let Cerno seat one for the decision you've described.
Watch them argue
The Chair runs the debate. Advisors challenge the assumptions — and each other — then vote, with their reasoning on the record.
Take the brief
Recommendation, the vote and its dissent, risk and confidence, the assumptions it rests on, and what to do this week.
A structured process, not a single chat answer.
Cerno brings multiple advisor perspectives into one controlled flow — challenge, vote, risk, confidence and next actions. You watch the decision being made, not just read an answer.
The thing a real board hands you.
Recommendation, recorded vote, dissent named, risk and confidence, facts separated from assumptions, next actions with dates. Print it, export it, or just come back to it in three months when you've forgotten why you did it.
Proceed — conditional on securing the lease below £42/sq ft and hiring a site lead before commitment.
- ›Current site at 95% utilisation.
- ݣ180k inbound enquiries this quarter.
- ›Enquiries convert at ~30%.
- ›Fit-out completes in 10 weeks.
Commission an independent demand study.
Shortlist a site lead before any lease is signed.
Secure the lease at or below £42/sq ft.
Why not just ask a chatbot?
A chatbot
One answer, then it’s gone.
- ✕Single response
- ✕Limited challenge
- ✕No formal vote
- ✕No decision record
- ✕Easy to miss assumptions
- ✕Output lost in chat history
Cerno
A structured decision, on the record.
- ✓Private AI boardroom
- ✓Multiple advisor lenses
- ✓Challenge round
- ✓Recorded vote with reasoning
- ✓Risk & confidence scores
- ✓Facts separated from assumptions
- ✓Executive Decision Brief & Journal
Most decisions aren't life-changing.
They're just relentless.
- ›Price the proposal, or hold the rate.
- ›Take the client, or walk away.
- ›Hire the VA, or keep doing it yourself.
- ›Which feature ships next.
- ›Chase the invoice, or let it ride.
- ›Say yes to the unpaid speaking slot.
- ›Drop the product line that isn't working.
- ›Go full-time, or stay employed.
- ›Raise, or bootstrap.
- ›The first real hire.
- ›Pivot, or persevere.
- ›Take the offer on the table.
Personal decisions are a designed-for case, not an afterthought: seat “Future You” as an advisor, or run it in the Personal Mentor Study. Where a decision touches financial, legal or medical ground, Evidence Mode flags where professional advice is needed.
See a brief before you run one.
- Sample briefsShould I hire my first employee?A worked Executive Decision Brief on a first hire: whether to take someone on, how to make it reversible, and the CFO's dissent on the record.
- Decision guidesHow to decide when you're the only one in the roomSole traders make every consequential decision alone. Four ways to get disagreement, distance and a record without a board — and what each costs.
- Sample briefsShould we raise prices 15%?A worked Executive Decision Brief on raising prices 15%: recommendation, recorded vote with dissent, risk and confidence scores, and next actions.
- Decision frameworksPre-mortem: the template, with worked examplesA pre-mortem imagines the decision has already failed and works back to why. The five-step template, worked examples, and how to run one properly.
Find out whether your board was right.
Every decision is saved with its brief, its assumptions and its vote. Record what you actually did — and later, what happened. After a year you have something nobody else has: a record of how you decide. Where your instincts are sound, where they aren't, and which advisor you keep overruling and shouldn't.
Open the Decision Journal →The things you can't say out loud yet.
Half of what you need to think through can't be said to staff, clients or a bank. Your decisions and briefs are visible only to you. We don't train models on them, nor do the providers we use, and you can delete your account and everything in it whenever you like.
What are you
putting off deciding?
Put it to the board. A few minutes, no card, and a brief you can actually act on.
Decision-support only. Not legal, financial, medical or professional advice. You remain responsible for your decisions. AI output can be wrong — verify important facts. Advisor archetypes are inspired by documented thinking styles, not real people. No impersonation of real living individuals and no voice cloning.