The cheapest margin in most companies right now is the gap between what a vendor quote assumes and what AI has quietly made buildable, and one doctor's app puts a number on it. Dr. Fahim Hussain is a GP and Director of Northern Health, a private healthcare venture in the UK, and he wanted a proper patient-facing app for his practice: booking, prescriptions, patient authentication, subscription billing, wearable integration, nutrition tracking, habit tracking, a medication manager, AI health coaching. Not a landing page with a contact form, an actual platform.
He went out to traditional development agencies and the quotes came back at £75,000 to £100,000 with 12 to 18 month timelines, which is the 2024 price for that scope of work and the price agencies are still quoting. So he sat down with Replit and built it himself.
Not a prototype. A working subscription platform with authentication, payments, Fitbit integration, barcode-scanning nutrition tracker, habit tracker with streaks, 150+ exercise library, medication manager with an AI side-effect checker, and AI health coaching running across symptoms, fitness, and medication. The full feature list is longer than most agency scoping documents.
The headline here is the price, but the story underneath the headline is the one most leadership teams have not priced in yet.
Why this keeps happening
We have now seen this pattern across dozens of businesses, and it is not confined to software. The same shape shows up in marketing retainers, internal tooling, analytics dashboards, ops automation, customer support platforms, and a long tail beyond those. Two forces are holding it in place.
Supply side. Many service providers price against 2024 assumptions and bank on the buyer not knowing what AI has changed in the meantime. When agency margins depend on a 12-month timeline and six-figure scope, the incentive is to keep quoting that way rather than tell you the same result is now four days and three figures, so the quote looks reasonable against last year's benchmarks and gets signed without much friction.
Demand side. Leadership rarely has the internal visibility to challenge the quote in the first place, because there is no one in the building who can credibly say "this is buildable in four days, not four quarters." Without that knowledge inside the company every quote looks fair by default, and a fair-looking quote gets the cheque written.
Both sides compound on each other. Every month a company operates without internal AI fluency, the gap between what it is paying for and what is actually buildable widens, and the competitor who does have that fluency is shipping the same capability for a fraction of the budget and a fraction of the time.
The audit most companies have not done
This is the lowest-hanging work in any business right now, and most leadership teams have not walked over to pick it up. A few questions worth taking into the next leadership meeting.
- Every software subscription you are paying for. Is the per-seat price still reasonable against a buildable alternative? Or was it priced against a 2024 assumption about what replacement would cost?
- Every open vendor quote on someone's desk. Does the team scoping the work know what AI has made buildable internally? If they do not, they are not negotiating. They are accepting.
- Every internal tool that "nobody has time to build." Is that still true, or is it a sentence from the era before four-day builds?
- Every SaaS renewal this quarter. What is the real cost of switching to something your own team could ship and maintain? That number has moved a lot in twelve months.
The goal is not to rip out every vendor relationship, because plenty of them are still the right call. The goal is to know which ones are still the right call and which ones have quietly become the wrong one, because without that knowledge the default answer is always "renew," and the renewal default has become actively expensive over the last twelve months.
Where this leaves leadership
Most businesses are one audit away from finding significant margin that is currently walking out the door as vendor spend, and the work itself is not complicated: a line-by-line review of what you are paying for, done with someone in the room who understands what is now buildable internally.
If no one on your leadership team can answer the question "what is buildable in four days now, and what is not," that is the gap that keeps the quotes landing and the cheques getting written, and closing it is the cheapest, highest-leverage move most companies have available to them this quarter. Every week this goes un-audited is another week of 2024 prices clearing against 2026 capability, and your profit margins feel that mismatch long before your P&L does.