← Showcase
Rethink AI · Financial Services

What if we rethought advice?

Good financial advice changes lives, and almost no one gets it. It's expensive, slow, and arrives as a PDF you can't question. So we built Flynn: a working demonstration of what AI-native advice could be. Instant. Every number explained. A human exactly where it matters.

Working pilot · not financial advice A Seren Technology brand
The idea

The tools to do advice better already exist.
They're just not pointed at the problem.

Advice is gate-kept. Quality financial advice is reserved for people who already have wealth. Everyone else gets a calculator, a call centre, or nothing.

Advice is opaque. The output is a document of conclusions you're asked to trust, with no way to ask "why?", change an assumption, or see the working.

Advice is slow. A fact-find, three meetings, weeks of waiting, to answer a question you needed answered this week.

The pieces are ready. Deterministic models, plain-language explanation, real-time data and licensed advisers. Wire them together properly and the experience changes completely. That's the pilot.

The showcase

Meet Flynn.
A demonstration, not a deck.

A financial companion that shows you exactly where you stand, models the real decisions you're weighing up, and brings in a licensed adviser when judgement matters. Every figure traces to its source. Hover, and it shows its working.

Beat 01

See where you stand

Connect your accounts or tell us a few numbers, and Flynn assembles your position in minutes (income, spending, runway, net worth), each one computed live and explained on hover. No fact-find marathon.

Today · your position
Morning, Alex.
If income stopped
7.2 months
Spare / month
$910
Net worth
$108,400
↳ every figure carries its source · hover to see the working
Beat 02

Model a real decision

"Can we afford this home, and what if life changes?" Flynn models it three ways against your actual money: buy now, wait, or weather a rate shock. Deterministic: same inputs, same answers, always.

Decisions · the modelling room
What if you bought a home?
Buy now
Comfortable
$420
spare at the tightest stretch
Buy now + rate spike
Tight
−$180
spare at the tightest stretch
↳ the trade-off Flynn won't weigh for you → your adviser
Beat 03

A companion, not a calculator

Between decisions, Flynn keeps an eye on your resilience and flags what's worth a look before it becomes a problem, then hands a one-tap, fully-worked brief to a licensed adviser when a real decision needs a human.

Watchlist · what Flynn's watching
Your savings are earning next to nothing
~$42,000 on call at 0.1%. A notice-saver would add roughly $1,400 a year, without touching your buffer. A model, not a recommendation.
↳ Flynn flags and explains · advice comes from your adviser
Under the hood

No black box.
The AI explains. It doesn't decide.

Built the way Rethink AI builds everything: useful first, governed by design, in plain language the boardroom and the client can both act on.

01 · Deterministic

The maths is a model, not a guess

A standalone decision engine does the numbers. Same inputs, same answers, every time, and every figure carries an audit trail.

02 · Guardrailed AI

The LLM narrates, never advises

AI turns the engine's working into plain English. It's sealed to the numbers, checked against them, and can't invent a figure or give regulated advice.

03 · Human in the loop

A licensed adviser where it counts

Flynn models and explains; advice still comes from a regulated human. The handoff is a fully-worked brief, not a blank fact-find.

Who built it

Built by Rethink AI,
in our strongest domain.

Rethink AI is Seren's AI and innovation practice: we help organisations find where AI is genuinely useful, build the pilots that prove it, and put the governance and skills in place to scale safely. Flynn is one of those pilots, in the field we know best: wealth, advice and regulated financial services.

Led by Craig Ward, former CTO of Kiwi Wealth, a $10bn fund manager, and Chief Innovation & Digital Officer at MAS, where he stood up the organisation's first AI practice.

CTO · Kiwi Wealth ($10bn) Chief Innovation & Digital Officer · MAS NZ CIO Top 50 Regulated AI practice, stood up from scratch