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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.

Method

16 essays

Turn your course into an adaptive AI tutor with Gemini study notebooks

Turn your course into an adaptive AI tutor with Gemini Study Notebooks.

A practitioner playbook: how to convert your existing course, protocol handbook or intake pack into a personalised study tool clients can use between sessions — and how the dashboard makes your next session sharper without more of your time.

23 July 2026·8 min read

8 ways to use Fable 5 to staff a wellness business on one seat

8 ways to use Fable 5 to staff a wellness business on one seat.

Eight moves a small clinic can run to staff one seat like a role — not a tool per leak. Each is a concrete step, from the written gate and the handbook to one read-only connector and a room per workflow, with a human owning every client-facing word.

18 July 2026·8 min read

8 ways to use Fable 5 to run a solo practice like you finally hired help

8 ways to use Fable 5 to run a solo practice like you finally hired help.

Eight moves a solo practitioner can run this week to induct a worker as the associate they could never afford — each a concrete action, not advice, and every one built around a human sign-off gate so nothing client-facing goes out unsigned.

17 July 2026·8 min read

9 ways to use Fable 5 to read your own health without another app

9 ways to use Fable 5 to read your own health without another app.

Not theory — nine small moves you can run today with the data you already collect. Each one is a five-minute action, not advice: the exact brief to write, the file to upload, the room to build, the job to schedule. The worker does the reading; you keep the deciding.

16 July 2026·7 min read

The first hour: setting up Fable 5 as one seat for a wellness business

The first hour: setting up Fable 5 as one seat for a wellness business.

A clinic does not need ten AI tools. It needs one seat, set up like a role — in about an hour. Write the operations handbook, wire one read-only connector, build a room per workflow, schedule the drudge, and put a human at the sign-off gate. Here is the first-hour setup for a wellness business.

9 July 2026·9 min read

Set up in an hour: the Fable 5 first-hour for a solo practice

Set up in an hour: the Fable 5 first-hour for a solo practice.

The associate you could never afford does not arrive trained — you induct it. One focused hour: write the practice induction, upload a real intake, build a room per client, and wire the sign-off gate before anything reaches a soul. Here is the first-hour setup for a one-person practice.

8 July 2026·9 min read

The first hour with Fable 5 — a setup guide for reading your own health

The first hour with Fable 5 — a setup guide for reading your own health.

You do not need to learn the tool. You need to set it up once. Sixty minutes, four moves — write the brief, pour in your data, build one room, set one standing job — and the chat box turns into something that quietly reads your own body for you. Here is the first hour, step by step.

7 July 2026·8 min read

Track state, not feelings: the journaling reframe your nervous system actually understands

Track state, not feelings: the journaling reframe your nervous system actually understands

Most journaling asks you to narrate your feelings. Your nervous system doesn't speak in narratives — it speaks in states: settled, mobilised, shut down. When you log the state instead of the story, two things happen. The entries get short enough to actually keep, and the pattern becomes legible to you and to an AI you can ask about it. Here's how to run a state-based ledger that tracks your baseline instead of your mood — and why it reads your data better than any app built to track your output.

20 June 2026·7 min read

Stop writing prompts. Start directing systems.

Stop writing prompts. Start directing systems.

The clever prompt was a 2024 skill, and it's being automated away. The durable skill in 2026 is briefing an agent, directing it across an entire system, and curating what comes back. Here is what that shift means for your health, your work, and why taste — not prompting — is the thing worth keeping.

6 June 2026·8 min read

The sensor is not the system — what the new wave of sleep tech keeps getting backwards.

The sensor is not the system — what the new wave of sleep tech keeps getting backwards.

Forbes just rounded up the most accurate sleep trackers of 2026 — rings, watches, brain-sensing headbands, sleep mats, even your phone. Impressive sensors, every one. But accuracy is not understanding, and a better score is not a better night. Here is the part the device makers keep getting backwards.

4 June 2026·8 min read

The caseload noise and the signal — how AI literacy turns twelve foggy clients into one readable practice.

METHOD · PRACTITIONER

The caseload noise and the signal — how AI literacy turns twelve foggy clients into one readable practice.

Your clients try every protocol from the feed. They feel something. They report something. But you can't follow twelve people around all week asking how their magnesium is going — your liability insurance doesn't cover stalking. And no app rolls their messages, wearables, and food photos into one pattern you can act on. This is the practitioner job AI literacy actually does.

26 May 2026·6 min read

The noise and the signal — how AI literacy turns longevity guesswork into a quantified n=1.

The noise and the signal — how AI literacy turns longevity guesswork into a quantified n=1.

You try every longevity hack from the feed. You feel something. You see something. But nothing tells you which intervention is actually working — and you don't have a health team following you around with a clipboard. (Unless you do, in which case — respect.) Here's the part the algorithm can't do for you.

26 May 2026·5 min read

Built with AI. Decided by a human.

Built with AI. Decided by a human.

AI is the most powerful instrument wellness has ever had. If you can read your own body, you can learn to direct this tool — and the possibilities open fast.

21 April 2026·4 min read

Skincare on a 12-week clock

Skincare on a 12-week clock

Your skin is a slow signal. The feed is fast. Here is how to read your face like data and stop buying the next thing the algorithm sells you.

18 April 2026·4 min read

Personal longevity analytics, without the dashboard

Personal longevity analytics, without the dashboard

Why the things that matter for longevity move on the scale of years — and what to track if you actually want them to bend.

18 April 2026·3 min read

The evidence hierarchy we use, and why

The evidence hierarchy we use, and why

Strong, promising, anecdotal — labelled out loud. The three-tier hierarchy that prevents both naïve scientism and uncritical wellness.

3 March 2026·3 min read

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