Now available

Expert-level AI context.
Built for your profession.

Domain-specific templates that make Claude, ChatGPT, and Gemini work like they already know your field. Pick your role. Customize in minutes. Use everywhere.

Browse Templates Or build from scratch — Free

⚡ 7 role-specific templates 🔄 Works across all AI tools 📁 You own the file — forever

The problem

AI treats every professional
exactly the same

A trader and a designer get the same generic output. AI doesn't know your field, your frameworks, or how you make decisions. So it guesses — badly.

🎯

Generic advice for specialized work

AI gives a portfolio manager the same answer it gives a student. It doesn't know your risk framework, your universe, or your decision rules. So you spend more time correcting it than using it.

🔁

You re-explain yourself every time

"I'm a [role] who works on [thing] with [constraints]." Every new chat, every new tool. The AI forgets everything the moment you close the tab.

📋

No structure = wasted context

Even if you paste background info, unstructured text wastes tokens and confuses the model. Domain-structured context gets dramatically better output — the format matters as much as the content.

The solution

A structured file that
makes AI get you

A Brainfile is a structured context document — your role, expertise, preferences, workflows, and decision rules — formatted so any AI tool instantly understands how to work with you.

Structured, not scattered. Guided templates, not a blank text box. Your context is organized by category — role, preferences, communication style, domain expertise.
Cross-model portable. One master file exports to Claude Projects, ChatGPT Custom Instructions, Gemini, Cursor Rules, and any tool that accepts system prompts.
Intentional, not passive. You design what AI knows about you. No opaque "memory" collecting random fragments — you're in control.
Yours forever. It's a file you own. Not a subscription feature. Not locked inside a platform. A portable document that gets better over time.

my-brainfile.md

# Identity
role: Product Manager at a B2B SaaS startup
experience: 8 years, previously at Stripe
team_size: 12 engineers, 3 designers

# Communication Style
tone: Direct, no filler. Lead with the answer.
format: Bullet points > paragraphs
avoid: Corporate jargon, "synergy", "leverage"

# Domain Expertise
strong: Pricing strategy, PLG, user onboarding
learning: ML ops, data pipelines
# Don't explain basics in strong areas

# Decision Framework
priority: Revenue impact > engineering effort
bias: Ship fast, iterate. Perfection = loss.
metrics: NRR, activation rate, time-to-value

# Current Context
focus: Launching enterprise tier Q2 2026
blocker: SOC2 compliance, 60% complete
upcoming: Board meeting Apr 15 — need ARR story
          

The difference

Same prompt.
Completely different output.

Without Brainfile

Generic advice that applies to anyone in any industry

Starts every response with unnecessary caveats and context-setting

Suggests tools and frameworks you've already evaluated and rejected

Explains concepts you've known for a decade

Writes in a tone that doesn't match how you think or communicate

Context resets every conversation — you rebuild from zero each time

With Brainfile

Tailored recommendations using your specific constraints and goals

Skips to the answer — knows you want direct, no-filler responses

Builds on your existing decisions instead of second-guessing them

Treats your expertise areas as given and focuses on your learning edges

Writes in your voice — matches the tone and format you actually use

Every conversation picks up right where you are — role, projects, preferences

Pricing

Start free. Go pro
when AI becomes essential.

Every tier includes cross-model export. Your Brainfile works everywhere.

Free

Try it out. See the difference.

Free forever

3 Brainfiles
5 starter templates
Export to Claude & ChatGPT
Markdown download

Build Yours Free

Pro

For professionals who live in AI.

$97/yr

Cancel anytime

Unlimited Brainfiles
All templates + vertical packs
Export to all platforms
Version history
Import from existing tools

Get Pro — $97/yr

Let an expert build
your Brainfile

You answer 5 questions. We build a production-grade Brainfile tuned to your role, your tools, and your communication style. Delivered in 48 hours. 2 revisions included.

1
Submit intake form Tell us about your role, tools, and what you want AI to do better. Takes 5 minutes.
2
We build your Brainfile Our context engineer structures your identity, preferences, expertise, and workflows into a production-grade file.
3
You get cross-model exports Receive your Brainfile formatted for Claude, ChatGPT, Gemini, and Cursor — ready to paste and use immediately.
4
Revise until perfect 2 rounds of revisions included. Plus 90 days of update support as your context evolves.

FAQ

Questions

What exactly is a Brainfile?

A Brainfile is a structured markdown document that captures your professional identity, communication preferences, domain expertise, decision frameworks, and current context. When loaded into any AI tool as a system prompt or project file, it transforms generic AI into a personalized assistant that knows how you work.

How is this different from ChatGPT's memory feature?

ChatGPT's memory passively collects fragments from your conversations — you can't control what it remembers or structure it intentionally. A Brainfile is designed by you (or our expert), structured for maximum AI comprehension, and portable across every AI tool. You own the file, you control the content, and it works everywhere — not just one platform.

Which AI tools does it work with?

Every major AI tool that accepts custom instructions or system prompts: Claude (via Projects), ChatGPT (via Custom Instructions or Custom GPTs), Gemini, Cursor, GitHub Copilot, Perplexity, and more. We provide formatted exports optimized for each platform.

What's included in the Done-For-You package?

A 30-minute intake session (async form or live call), a custom-built Brainfile structured by our context engineer, formatted exports for every AI tool you use, 2 rounds of revisions, and 90 days of update support. Most clients see an immediate improvement in AI output quality on the first conversation.

Can I update my Brainfile over time?

Absolutely — and you should. Your context evolves as your role, projects, and preferences change. Pro subscribers get version history to track changes. DFY clients get 90 days of update support, and can re-engage anytime for refreshes.

Expert-level AI context.
Built for your profession.

AI treats every professional
exactly the same

Generic advice for specialized work

You re-explain yourself every time

No structure = wasted context

A structured file that
makes AI get you

Same prompt.
Completely different output.

Pick your profession.
Start in 5 minutes.

Start free. Go pro
when AI becomes essential.

Let an expert build
your Brainfile

Questions

Not ready to buy? Stay in the loop.

Expert-level AI context.Built for your profession.

AI treats every professionalexactly the same

Generic advice for specialized work

You re-explain yourself every time

No structure = wasted context

A structured file thatmakes AI get you

Same prompt.Completely different output.

Pick your profession.Start in 5 minutes.

Start free. Go prowhen AI becomes essential.

Let an expert buildyour Brainfile

Questions

Not ready to buy? Stay in the loop.

Expert-level AI context.
Built for your profession.

AI treats every professional
exactly the same

A structured file that
makes AI get you

Same prompt.
Completely different output.

Pick your profession.
Start in 5 minutes.

Start free. Go pro
when AI becomes essential.

Let an expert build
your Brainfile