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Cerno
Cerno

AI Decision Intelligence

Your Private AI Boardroom for Decisions That Matter

Specialist AI advisors challenge your assumptions, debate the options and vote on the outcome. You get an Executive Decision Brief you can act on.

Your decision

“Should we open a second site?”

Framed with context, options and what's at stake.

Private AI Boardroom

ChairStrategyFinanceRiskCustomerFuture

Challenge round · recorded vote · risk & confidence scoring

Executive Decision Brief

Proceed — pilot one site, gate on 6-month demand.

Vote

4–1

Risk

38

Conf.

71

+ objections · assumptions · next actions

Cerno — from Latin cernō: to sift, distinguish and decide.

Why decisions go wrong

Big decisions rarely fail for lack of an opinion

They fail because the assumptions were never challenged, the risks were never made explicit, and the reasoning was never written down. Cerno turns instinct and scattered conversations into a structured decision process — specialist challenge, a recorded vote with its reasoning, scored risk and confidence, and a written record you can return to.

The process

How Cerno works

  1. Frame the decision

    State the decision, context, constraints and options. Set the mandate: quick read, full debate, risk scan or red team.

  2. Seat the advisors

    Cerno assembles specialist perspectives — strategy, finance, risk, customer, operations and future impact — or start from a preset panel in one tap.

  3. Challenge and vote

    The Chairperson runs the debate, advisors challenge the assumptions, then vote on the best path — with their reasoning recorded.

  4. Receive the brief

    Cerno produces an Executive Decision Brief with recommendation, risk, confidence, objections and next actions.

Private AI Boardroom

A structured decision process, not a single chat answer

Cerno brings multiple advisor perspectives into one controlled decision flow: challenge, vote, risk, confidence and next actions — so you watch the decision being made, not just read an answer.

  • Chair
  • Strategy
  • FinanceFor
  • RiskAgainst
  • CustomerFor
  • FutureConditional
Advisor alignment3/5 in favour

Illustration of a live deliberation

The output

An Executive Decision Brief, not a wall of chat

Every Cerno session ends with a structured decision record: the recommendation, the advisor vote and its reasoning, the risks, confidence, assumptions, objections and next actions. Print it, export it, drop it in a board pack — and return to it later.

Works the same for life decisions: seat “Future You” on the panel for a job offer, a house move or a major purchase.

Executive Decision Brief

Should we open a second site in Manchester?

Recommendation

Proceed — conditional on securing the lease below £42/sq ft and hiring a site lead before commitment.

Confidence

72%

Risk

Medium

Vote

4–2

Recorded vote — the dissent, on the record

  • CFO — cash runway thins to under five months through peak fit-out.
  • COO — no site lead identified; management bandwidth is already stretched.

Known facts

  • Current site at 95% utilisation.
  • £180k of inbound enquiries logged this quarter.

Assumptions

  • Enquiries convert to revenue at ~30%.
  • Fit-out completes inside 10 weeks with no planning delay.

Next actions

  • This week — commission an independent demand study.
  • Within 30 days — shortlist a site lead before any lease is signed.
  • Before commitment — secure the lease at or below £42/sq ft.
Illustrative brief · Evidence Mode on

The difference

Why not just ask a chatbot?

A chatbot gives you an answer. Cerno gives you a decision process — specialist advisor lenses, a challenge round, a recorded vote with its reasoning, risk and confidence scoring, and an Executive Decision Brief on the record. It even tells you what it knows, what it's assuming, and what you still need to find out.

A chatbot

One answer, then it's gone.

  • Single response
  • Limited challenge
  • No formal vote
  • No decision record
  • Easy to miss assumptions
  • Output gets lost in chat history

Cerno

A structured decision, on the record.

  • Private AI boardroom
  • Multiple advisor lenses
  • Challenge round
  • Recorded vote with reasoning
  • Risk and confidence scores
  • Facts separated from assumptions (Evidence Mode)
  • Executive Decision Brief
  • Decision Journal

Use cases

Built for decisions that matter

At work

Founder decisions

Pressure-test the big calls — raise or bootstrap, pivot, when to double down — from every angle before you commit.

Hiring and people decisions

Test a key hire, promotion or restructure against capability, cost, timing and the downside case.

Investment and major spend

Returns, defensibility, downside and evidence — challenged and scored before the money moves.

Strategy and market entry

Weigh a market entry, positioning bet or new line against demand, timing and how it could break.

Risk and compliance

A systematic exposure scan: what goes wrong, how badly, what mitigates it, and what needs evidence.

Supplier and operational decisions

Compare options on leverage, risk, total cost and the relationship that follows the deal.

Product and pricing choices

Stress-test scope, pricing, packaging and timing before you ship — with the assumptions made explicit.

The same rigour boards apply to million-pound decisions — for the decisions in your own life.

In life

Buying a car or house

Total cost, timing, downside and regret — weighed before you sign, not after.

Job offers and career changes

Test the offer against money, meaning, momentum and where it leaves you in five years.

Relocation

A move judged on work, family, cost of living and what you'd be giving up.

Major purchases and financial commitments

Big-ticket commitments challenged on value, terms and the downside case.

Education and family choices

School, study and family decisions worked through with the trade-offs 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.

Decision Journal

An auditable record of every decision

Every decision is saved with its brief, assumptions, risk and confidence. Revisit the assumptions, record what you actually did, track the outcome — and learn from previous decisions instead of repeating them.

Expand into the US next quarter?

Hold — gather demand evidence first

Followed

Sign the 3-year lease?

Proceed, renegotiate renewal

Pending review

Hire a second engineer now?

Wait one quarter

Advisors were right

Private means private

Your deliberations stay yours. Decisions and briefs are visible only to you. We don't train AI models on your decisions, and you can delete your account and everything in it at any time.

Start free

Start with your next major decision

Use Cerno to structure the decision, challenge the assumptions and produce a decision brief you can return to. Free to start — upgrade for unlimited advisors, saved history and follow-ups.

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.