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Not a tool. Not a chatbot.

The part of you
that didn't know
existed.

The core intelligence that bonds with founders, enters the business, and turns scattered ambition into coordinated motion.

The Merge

Not separate from you. Fused.

The symbiote doesn't sit on your desk. It's behind you. Always present. Never in the way.

Always Present

Not a tab you open. An intelligence that moves with you. From your desk to your wrist to your ear.

In the Room With You

FCOS listens to your meetings, advises in your ear, captures decisions before they're lost. The silent co-founder.

Nothing Lost

Speak a thought while walking. FCOS captures, classifies, and routes it. Every idea finds its place.

Why FCOS works differently

Check first. Act after.

Most AI tools act first and fix the fallout later. FCOS works the other way.

Before any action, FCOS checks what exists, what is running, and what has already been done. Then it acts. This is not slower — it is five times less expensive in time, tokens, and the cost that does not show up in any invoice.

Every error an AI makes that the founder has to catch is not just a mistake. For someone building on limited resources, it is the thing that compounds. The thing that erodes trust. The thing that turns a dream into something too exhausting to carry.

FCOS does not just save time. It protects the people using it.

They validate your idea before you waste time on it.
They learn your business sector while you sleep.
They build your product while you think about the next one.
They run your operations while you focus on growth.

One team. Every stage of your journey.

The Specialist Network

Not one AI. A whole team.

16 specialists across three tiers. Each symbiote owns one domain. Together they cover everything.

FCOS Symbiote
FCOS Symbiote
The Orchestrator
FCOS Build
FCOS Build
Deep coding intelligence
FCOS Brainz
FCOS Brainz
Knowledge & strategy
Business Brain
Business Brain
Financial intelligence
AI now in training — getting smarter with every conversation

Meet all 16 symbiotes →
The Platform

Not separate apps. One body. One operating system.

Use everything. Use one. Use them as integrations. Your choice.

The GPT Network

Your specialist team. Already live.

Six specialists available now on ChatGPT. Seven more arriving.

The Store Economy
93%

Of every sale you make in the FCOS Store, 93% is yours.

We take 7% — split between advertising your app, promoting you, and rewarding the community that helped your app succeed.

No greed. No lock-in. The platform that makes money with you.

1% platform sustainability · 2% auto advertising your app · 2% creator promotion · 2% monthly affiliate pool


See the store →
Pricing

Simple pricing. No surprises.

The average founder pays £120/month for disconnected tools. FCOS replaces all of them.

Annual plans: 2 months free

Stripe payments coming at launch. Sign up free now, upgrade when ready.

Desktop App

Now on desktop.

v1.1.5 now available. Windows, macOS and Linux.

Your entire AI team. One window. Always connected to the symbiote network.

Download for Windows →

macOS and Linux also available.

Early Access

“That looks really fucking cool. Excuse my language. Thankyou xx”

Sydney — early access user
FCOS Symbiote

I do not confuse movement
with progress.

Free to start. No credit card. Your business partner is waiting.

Get started free →