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Which Claude model should you use? Haiku, Sonnet and Opus, picked by the health job — not the hype.

Every few months the names change and the launch posts insist this one is the smartest model ever made. For running your own health data, that’s the wrong question. There aren’t seven models to memorise — there’s one ladder, and a simple rule for which rung fits which job. Here’s the calm version: what Haiku, Sonnet and Opus actually are, and which one to reach for when you’re reading your own labs, sleep and notes.

9 June 2026·9 min read·Essay

Tools

Which Claude model should you use? Haiku, Sonnet and Opus, picked by the health job — not the hype.

Strategy

24 essays

Done-for-you: your wellness business's seat, built for you on one seat before payroll

Done-for-you: your wellness business’s seat, built for you — on one seat, before payroll.

You have seen how to staff one seat like a role instead of buying a tool per leak. This is what it looks like when we wire that seat for you — the handbook, the read-only connectors, the per-workflow rooms and the scheduled drudge jobs, delivered turnkey — with a named human holding the master sign-off.

21 July 2026·8 min read

Done-for-you: your solo practice, staffed for you and signed by you

Done-for-you: your solo practice, staffed for you — and signed by you.

You have seen how to induct a worker as the associate you could never afford. This is what it looks like when we induct it for you — the handbook, the client rooms, the delegated drafts and the weekly sweep, delivered ready — with the sign-off gate wired in so nothing client-facing ever goes out unsigned.

20 July 2026·8 min read

Done-for-you: your own health, read for you and handed back

Done-for-you: your own health, read for you — and handed back.

You have seen how to build the system yourself. This is what it looks like when we build it for you — the standing brief, the full upload, the project room and the weekly job, assembled and handed over — with the one job that was never drudgery left exactly where it belongs: with you.

19 July 2026·7 min read

Success story: watching a wellness clinic staff a seat in a week

Success story: watching a wellness clinic staff a seat in a week.

The build a small clinic actually ran, in order — not a tool per leak, but one seat set up like a role. Starting from a cold inbox, working through the handbook, the read-only connector and the rooms, and implemented as a closed gap between demand and care with a human still holding the pen.

15 July 2026·9 min read

Success story: watching a solo practice get its evenings back

Success story: watching a solo practice get its evenings back.

The build, not the pitch — the exact sequence a solo practitioner ran to induct a worker as an associate. Starting from an empty second chair, working through the draft-and-sign-off loop that keeps care human, and implemented as recovered evenings and follow-ups that finally get sent.

14 July 2026·9 min read

Success story: watching a year of health data come together in one sitting

Success story: watching a year of health data come together in one sitting.

This is the build, not the brochure — a real sequence you can copy. Starting with one unread export, working through the exact moves that make a worker read it honestly, and implemented as a standing Sunday reading that hands you a shortlist and leaves the decision where it belongs: with you.

13 July 2026·8 min read

Case study: the clinic that closed the gap between demand and care on one seat

Case study: the clinic that closed the gap between demand and care on one seat.

A small wellness clinic was losing clients in the space between the enquiry and the booking — not for lack of care, but for lack of hands. Here is what changed when they stopped buying a tool per leak and set up one seat, inducted like a role, with a human holding the pen.

12 July 2026·9 min read

Case study: the solo practice that hired an associate for the price of a seat

Case study: the solo practice that hired an associate for the price of a seat.

A one-person practice was drowning at the edges — the intake skimmed at 9pm, the follow-up that never got sent, the prep done in the car park. Here is what changed when the practitioner inducted a worker as an associate, kept a human at the sign-off gate, and got the evenings back.

11 July 2026·9 min read

Case study: the year of health notes that finally read itself

Case study: the year of health notes that finally read itself.

One person, four years of scattered health data, and a nagging sense that the answer was already in there somewhere. Here is what changed when she stopped scrolling through it and handed the whole pile to a worker that could hold it all at once — and why the useful part was still the decision she made at the end.

10 July 2026·8 min read

Fable 5 for wellness businesses: the worker you can afford before the next hire

Fable 5 for wellness businesses: the worker you can afford before the next hire.

Clinics and studios do not fail from a lack of demand. They stall on the admin between the demand and the care. A large-context model is the first role you can staff without payroll — if you give it a desk, a job description, and a human who signs off.

3 July 2026·9 min read

Fable 5 for practitioners: hire the model, keep the judgement

Fable 5 for practitioners: hire the model, keep the judgement.

A model that can hold a client’s whole history at once is not a smarter search box — it is the associate you could never afford. Here is how to delegate the draft, gate the decision, and end up with more time for the part of the work only you can do.

2 July 2026·9 min read

"Build me an app that reads them together."

“Build me an app that reads them together.”

A new class of European health copilot has found the sharpest pain in the whole category and built a beautiful app around it: three apps, one blood report, zero answers. The pitch is right. The finish line is wrong. Here's what the download-an-app model gets right — and the dependency it quietly rebuilds.

1 July 2026·7 min read

The automation layer just moved into the tools you already pay for

The automation layer just moved into the tools you already pay for

The interesting AI story this month isn't a new chatbot. It's that the office suite you already own quietly learned to brief your day, prep your meetings, and block your recovery time — no extra app, no new login. That's the same shift we keep pointing at: AI moves into the tools you already use. Here's how to put that shift to work for your health instead of your inbox — and the governance questions nobody in the productivity blogs is asking.

20 June 2026·8 min read

Wellness can't out-shout TikTok University — so stop trying. Out-trust it.

Wellness can’t out-shout TikTok University — so stop trying. Out-trust it.

The accounts winning the wellness feed aren't more correct than the practitioners losing it — they're more available and more certain. You can't beat entertainment dressed as knowledge by being louder. You beat it by being recognisable, consistent, and believed. Here is the branding method for time-poor practitioners, and the part of it AI now does for you.

6 June 2026·9 min read

Messenger concierge — the practitioner setup that saves six minutes per client touch.

Messenger concierge — the practitioner setup that saves six minutes per client touch.

Most practitioners answer client messages from four places — inbox, DMs, WhatsApp, the booking platform — and lose ninety minutes a day to re-typing the same five paragraphs. Wire a reasoning chat into the messenger your clients already use, with a standing instructions block written for your practice, and the average touch drops from six minutes to ninety seconds. The shape of the setup, what it does, and where it stops.

24 May 2026·6 min read

The content engine — how one practitioner stopped buying tools and built one system instead.

The content engine — how one practitioner stopped buying tools and built one system instead.

Eleven SaaS subscriptions, four launch courses, two years of "experiments". Roughly £14,800 in a year, one underperforming launch to show for it. Then she replaced almost all of it with a single 17-step content cycle. The shape of the system, what stayed, what got cut, and why the cheapest line item in a practice is the one that replaces eleven others.

24 May 2026·8 min read

The quiet funnel — how a calmer social rhythm fills more discovery calls than a launch.

The quiet funnel — how a calmer social rhythm fills more discovery calls than a launch.

A solo practitioner replaced a stalled 12-week launch with three pages, one free 10-day email course, and a three-pillar social rhythm — and started filling discovery calls in a fortnight. The shape of the funnel, the social cadence underneath it, and how to build it without another app.

7 May 2026·7 min read

The research was never proportionally about women. The apps inherited the gap.

The research was never proportionally about women. The apps inherited the gap.

Population health data was built largely on male defaults, then handed to algorithms that smoothed every woman's outliers into “normal.” The fix is unromantic: treat your own body as a sample size of one, and read it with a model that does not assume you are the average of millions of strangers.

3 May 2026·5 min read

The quiet outreach engine: how a one-person practice grew inbound without a sales team.

The quiet outreach engine: how a one-person practice grew inbound without a sales team.

Most solo practitioners do not have an outreach problem. They have a Friday-afternoon problem. Here is the eight-channel system one coach installed in a weekend — and the small idea underneath it that any practice can copy.

3 May 2026·6 min read

The 60-year-old mum who got healthy without any of the apps.

The 60-year-old mum who got healthy without any of the apps.

Four wellness apps. Two wearables. Three diets. None of it stuck — until her practitioner stopped asking her to track and asked her to write four lines a week.

2 May 2026·4 min read

We are our own case study

We are our own case study

Most platforms teach a method and outsource their own back-end to someone else's stack. We built a recommendation engine using the same 3-Layer methodology we sell — and published the playbook.

1 May 2026·5 min read

Giving up one more nutrition tracking app.

Giving up one more nutrition tracking app.

The fifth food-logging app of the year is not the answer. The answer is one document, one model, and the willingness to stop outsourcing the question of what you actually ate.

1 May 2026·4 min read

Why most wellness apps die at Week 2

Why most wellness apps die at Week 2

Daily perfection vs sustainable rhythm — what insight density actually looks like.

7 April 2026·3 min read

The Sunday letter: why once a week beats daily

The Sunday letter: why once a week beats daily

Daily newsletters condition you to skim. Weekly letters earn the reading. The math on attention, signal, and the cost of being in someone's inbox.

24 February 2026·3 min read

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Related

Reading is good. Doing is better.

Pick the door that matches where you are. The Atlas points you at tools, the courses teach the method, the case studies show the work.

The AI Tools Atlas

100+ AI tools sorted by what they actually do for your health stack — research, ledger, protocol. Updated quarterly.

Build it live in 45 min

Bi-weekly Zoom workshop with Sabin. Build your AI Health Stack end-to-end, ask one real question, leave with a working setup.

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