Custom AI · Built around how you work

Generic AI doesn't know your business.

We build the AI that does. Around you. In a week.

Your voice. Your priorities. Your stack. A bespoke AI built from the way you actually work, installed in a week, owned forever. Not a template. Not a SaaS subscription. Yours.

Get tomorrow's work done today.

30 min · We map what your AI would look like · No commitment

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7 questions, no card, yours forever. A template scaffold to show you what the bespoke version would do.

Wired into

the tools you live in.

Claude
Gmail
Google Calendar
Notion
Google Drive
Linear
HubSpot
Stripe
The problem

Most AI is built for everyone. Yours should be built for you.

You're paying for generic AI. You should be paying for yours.

Every prompt restarts the introduction. Your business, your voice, your priorities, re-explained from scratch. Every conversation. Every tool.

Drafts that sound like AI, not you. Tasks copy-pasted between apps. Decisions you made six months ago you cannot find. The generic layer never fits how you actually work.

The unlock is not a better model. It is an AI built around your business, in your voice, wired into your tools, sharpening to your patterns every week.

01

ChatGPT or Claude on their own

Generic by design. Trained on the whole internet, not your business. Every conversation cold, every prompt re-pasting the same context.

02

Vertical AI SaaS

One template, sold to a thousand companies. The industry shape might fit. The way YOU actually work, almost never.

03

Most AI agencies

A boilerplate stack with your logo on it. Workflows copied between clients. You get their idea of best practice, not yours.

The difference

Same operator. Same week. Different system.

Monday before.
Monday after.

Before
×Open inbox. Skim, defer, panic-reply to three.
×Open ChatGPT. Re-paste your context. Re-explain your voice.
×Open Notion. Search for that decision from August. Don't find it.
×Open Slack. Promise yourself you'll get to the real work after lunch.
×Lunch arrives. Real work hasn't.
After
Open inbox. AI has triaged and drafted in your voice.
Review three drafts. Send. Approve the routing for the rest.
AI surfaces the decision from August. Quotes the rationale.
Real work starts at 9:18am. Not after lunch.
By Friday the system caught two threads you'd have missed.

Not a productivity trick. The AI does the work it should have been doing since you signed up for ChatGPT.

What changes

Built around you. Down to the file.

What custom actually
looks like for you.

Your voiceYour prioritiesYour tools· three things, tuned to you

Real bespoke fit. Tuned to your business, your voice, your stack.

01 · Spotlight outcome

Trained on your real inbox.

An AI that learns which threads matter to YOU, drafts replies in YOUR voice, and routes the rest into YOUR projects. Not a generic filter. A bespoke triage layer.

  • Threads scored by who they are to you and what they want.
  • Drafts written in your real voice, ready to send or edit.
  • Routes the rest into your projects. No copy-paste between apps.
What it actually feels like

The first hour of your day stops belonging to your inbox.

02

Tuned to your real writing

Your voice samples baked into every draft. No generic 'AI tone' tells. Sharper than what you'd write on your sixth coffee.

03

Wired to your actual tools

A client email lands. A task appears in your project with your context. Drafted in your voice. No copy-paste between your apps.

04

Built around your decisions

Why you chose X over Y, captured once in your own words. Searchable forever. Your future self stops re-litigating closed calls.

05

Your knowledge, stitched together

Your Notion. Your Drive. Your email. Your calendar. Stitched into one searchable surface, queried by an AI that knows your priorities.

06

Sharpens to your patterns

Week 4 is dramatically sharper than Week 1. Every conversation, decision, and draft trains the system more on the way you actually work.

The actual files

Real files. Not slides.

Here's what CLAUDE.md
looks like.

CLAUDE.md is the entry point Claude reads at the start of every conversation. Below is a redacted snippet from a real install. Your version is generated from your real inputs: business, voice samples, priorities, decisions.

The free AIOS Builder generates this file plus 11 others (priorities, voice, connections, decisions log, four shipped skills). Install adds the wiring that makes them run.

CLAUDE.mdexcerpt · redacted
# {Founder}'s AI Operating System

You are {Founder}'s personal AIOS. Your job is to be their thought
partner — help them think, decide, and ship faster on the priorities
below. You're a learning companion, not a vending machine.

## Who they are

{Founder} runs {Business}, a {stage} {category} business. The ICP is
{ICP}. The sales motion is {motion}. Every week before {top_priority}
is a week of runway spent.

## 90-day priorities

Verbatim from the intake — never paraphrased:

> {Priority 1 in their words}
> {Priority 2 in their words}
> {Priority 3 in their words}

## Voice

Match the register in references/voice.md (populated from real writing
samples). Cross-register rules: bullets over paragraphs when listing,
lead with action not status, no em dashes, AU English.

## Default behaviour

- Lead with what needs action, not status updates.
- When asked a question, answer it. Don't restate the question.
- When you spot a manual task being done 3+ times, surface it next
  /level-up.
- AI-First Reflex: when a new task arrives, ask "could AI handle this?"
  before assuming I'll do it the old way.

The values in { } are replaced with your real answers during generation.

How it works

One week to install. Compounding from there.

How we install your AIOS.
Three moves.

0130-min call
Discover

We learn your stack, your week, your pain.

Bring your tool stack and the work that's actually eating your week. We map where AI plugs in and where it doesn't, then scope a 1-week install around the three highest-leverage workflows.

021 week
Install

We wire it into your business.

Your AIOS generated and hand-tuned. OAuth wired to Gmail, Calendar, Notion, and your CRM. Three starter skills built live for the work you do every week. 30-min walkthrough so you drive it solo.

03Ongoing
Compound

Sharper every Monday.

New skills built as your work shifts. Weekly /level-up surfaces the next automation. Quarterly system review. You stay in flow, we hold the wiring.

"Most AI tools plateau the day you start them. This one keeps getting sharper as long as you keep using it."

Want to see the file layer before booking? Try the free AIOS Builder and you'll walk away with the same 12 files we'd start your install from.

Inside an install

One week. Six concrete moves.

What we actually do
during your install.

The install tier ships a running system, not a deck. Here's the schedule we usually run, end to end.

01
Mon

Discovery call & stack audit

30 min on Zoom. We pull apart your week, your tool stack, your top three pain points, and the work AI should be doing for you.

02
Tue

AIOS generated and hand-tuned

Your files written from your real inputs, then re-read by us to sharpen voice, priorities, and decisions before we wire anything.

03
Wed

OAuth wiring

Gmail, Calendar, Notion, Google Drive, and your CRM. We hold the integration work so you stay in flow.

04
Thu

Three starter skills, built live

Inbox triage, daily brief, and one custom skill for your top pain. Tested against real recent threads, not toy examples.

05
Fri

Walkthrough + handover

30-min screen-share. You drive the new system, we tune anything that feels off. You walk away running it solo.

06
Week 2+

First /level-up review

We surface the next automation worth building. Decision logged. Cadence set. From here, your system compounds every Monday you use it.

By Friday afternoon, your AI knows your business. By the following Monday, it's already saving you the first hour.

Book your install call
Track record

Built before. Building now.

Four shipped systems.
One pattern that compounds.

Client names anonymised by request. Vivaprep and the mobile game are Jehiel's own builds.

01 · Sales intelligence
Multi-million dollar start-up

Foot-traffic turned into booked meetings.

Reps were visiting hundreds of locations a week with no system to score who was a hot lead and who wasn't. We built the AI layer that triaged visits in real time and surfaced the threads that turned into booked meetings.

Hot leads, scored and routed.

02 · CRM intelligence
Y Combinator-backed business

Dormant value found in years of LinkedIn connects.

Thousands of LinkedIn connections sitting cold. We built the AI that triaged the network, scored each connection by current intent, and surfaced the warm leads hiding in plain sight.

Hot leads from connections already in the network.

03 · Agentic systems
VivaPrep.ai

Fully agentic interview simulations.

VivaPrep simulates real interviews end-to-end. Job-spec parsing, behavioural and technical questioning, scored feedback. Agentic from first question to final report.

End-to-end agentic, not assisted.

04 · Founder build
Mobile game (age 12)

100,000+ App Store sessions, organic.

Built a mobile game in high school that grew to 100,000+ sessions with no paid acquisition. The work earned a meeting with Apple App Store executives. The pattern that made it work is the same one that compounds here.

100k+ sessions, $0 ad spend.

Want to talk through how your stack maps to one of these patterns? Book a 30-min call.

Who builds this
Jehiel Pather, Founder of 11thGear
Jehiel Pather
Founder · 11thGear
Sydney
Sydney · Founder, 11thGear · Also building VivaPrep · Shipping software since age 12

Eight years watching operators get burned by AI promises.

I built this because I needed it first.

At 12, I built a mobile game that hit 100,000+ sessions and earned me a meeting with Apple App Store executives.

Through high school I built websites, apps, and automations for local Australian businesses and international NGOs navigating the COVID pandemic. Same pattern at every shop: AI promises and tracking dashboards. Software that "closed tickets" ended up being a person with a spreadsheet.

I interned at Deutsche Bank and saw the same gap from the institutional side: AI was theatre. Decks. Roadmaps. No wiring.

11thGear is what I wanted to exist when I was the operator trying to use AI in a real business. AI that actually knows your work. Drafts in your voice. Catches what you'd miss. Gets sharper every week.

"Every install I run, the operator sends a message in week two that reads some version of: 'wait, it just did the thing without me asking.' That moment is what we actually sell. Everything else is wiring."

Working together

Three paid engagements. One free starting point.

Pick the level of installation you need.

01 · Install
Install (1 week)

We wire your AIOS into your stack.

Full installation in your environment. OAuth wiring for your three highest-priority tools. Three starter skills wired live. 30-min walkthrough so you can drive it solo.

  • AIOS files generated and hand-tuned to your business
  • OAuth wiring for 3 tools (Gmail, Calendar, Notion, CRM)
  • 3 starter skills, built live against your real workflows
  • 30-min walkthrough so you drive it solo by end of week
Our guarantee

If your AI isn't triaging your inbox and drafting in your voice by Friday, we work for free until it is.

Best for: operators ready to stop training AI from scratch every Monday. First paid step.

We cap Install at a small number of clients per quarter to keep quality high. Book early to lock a Q2 slot.

02 · Pro Build
Pro Build (2-3 weeks)

Custom skills. Deep voice. Team rollout.

Everything in Install, plus 5-7 custom skills built for your specific business, a custom MCP server if needed, voice tuned from 50+ samples, and team onboarding.

Best for: established operators with specific operational pain points or teams adopting together.

03 · Operator Retainer
Ongoing partnership

The system keeps compounding.

Weekly /level-up builds. On-call optimisation. Quarterly system review. First responder on every new AI capability that ships.

Best for: operators where founder time is the bottleneck. Recurring ROI from compounding automation.

Paid scopes are quoted after a 30-min discovery call. Install runs as a one-off fee. Pro Build is project-based. Operator Retainer runs monthly.

Or start free

The free AIOS Builder.

7 questions, 5 minutes, the same 12-file scaffolding we start every paid install from. Yours forever. No card required.

Compared to your alternatives

Built for you, not the average of everyone.

How a bespoke install actually compares.

Knows your business cold from message 1

DIY ChatGPT
Hiring a VA
Yes (slowly)
Templated AI agency
11thGear Install
Yes

Drafts in your voice

DIY ChatGPT
Hiring a VA
Eventually
Templated AI agency
11thGear Install
Yes

Wired into Gmail, Calendar, Notion, your CRM

DIY ChatGPT
DIY (~30 hrs)
Hiring a VA
Manual
Templated AI agency
Maybe
11thGear Install
Yes

Compounds every week

DIY ChatGPT
Hiring a VA
Templated AI agency
11thGear Install
Yes

Travels to the next model

DIY ChatGPT
Hiring a VA
Templated AI agency
Locked to vendor
11thGear Install
Yes

You own the system

DIY ChatGPT
Yes
Hiring a VA
Templated AI agency
11thGear Install
Yes

Guarantee on outcome

DIY ChatGPT
Hiring a VA
Templated AI agency
11thGear Install
Yes

Install is scoped per engagement after a 30-min call.

The math

Setup is the part you don't want to do.

The install pays for itself
before week one ends.

OAuth setup, six tools

Roughly 5 hours per tool of fiddly token-and-scope work, done once. ~30 hours of operator time.

Writing skills that draft in your voice

Sample selection, prompt design, iteration cycles. A few hours per skill, three to five skills to start.

Decision logs, knowledge wiring, project routing

Structure, taxonomy, and consistency work that compounds. Most operators never get around to it.

We hold the wiring, the OAuth, the skill design, and the iteration. You show up to a discovery call, then a walkthrough five days later. By then, the system is yours.

What's an hour of your operator-time worth this year? Multiply that by the setup hours above. That's the floor on what Install recovers before any compounding kicks in.

Why this Monday

The cost of waiting isn't standing still.

Every Monday you train your AI from scratch
is a Monday a sharper operator doesn't.

The compounding goes both ways. Your competitors who installed six months ago are now six months into a system that knows their business, drafts in their voice, and surfaces patterns they'd have missed.

Starting now isn't dramatic. Starting in twelve months is. Pick the Monday that hurts least: this one, or the one where you realise the gap got too big to close in a single install.

Book directly

30 minutes. No deck. No pitch.

Grab a slot.
Bring your stack questions.

What we'll cover

Your stack

We map the tools you live in (Gmail, Calendar, Notion, your CRM) and identify the three wiring points with the highest leverage.

Your week

The work eating your time. Inbox, drafts, follow-ups, decisions that should be logged. We score them by automate-ability.

Your install scope

Whether Install (1 week) fits, or you're in Pro Build / Retainer territory. Honest scoping, not upselling.

Your timeline

When we could realistically start, what the first week looks like, and the guarantee that gets you to a running system by Friday.

If we're not the right fit, the call ends in 10 minutes with a clear pointer to a better option. No pretending the install is right for everyone.

Loading calendar...

Calendar can't load? Open cal.com/jehielp/20min directly.

The questions

What operators actually ask.

Read the questions before you book the call.

Right now, every conversation starts from zero. You re-paste your context, re-explain your voice, re-train it on what matters. We change that. Your AI knows your business cold from the first message, drafts in your voice, and gets sharper every week you use it. Same models, dramatically more leverage.

Stop training your AI from scratch

You don't need a better AI.

You need an AIOS installed
into your business.

One week from kick-off call to a running system. Files, skills, and wiring tailored to how you actually work. Yours forever.

30 minNo commitmentBring your stack
Built on

Real infrastructure. No black boxes.

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