11 templates ready to use

Your knowledge. Your file.
Your AI, finally under control.

A portable context file you own forever. No platform lock-in, no opaque AI memory. Make Claude, ChatGPT, and Gemini work like they already know your field — on your terms.

Browse Templates Or build from scratch — Free
📁 You own the file — forever 🔒 No data sent to any platform 🔄 Works across all AI tools

Works with every AI you use

Claude ChatGPT Gemini Cursor Perplexity Copilot
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
Templates

Pick your profession.
Start in 5 minutes.

Each template is built by domain experts — not generic fill-in-the-blank. Structured for maximum AI comprehension, portable across every tool.

🚀
Startup Founder
Strategy, fundraising, product, team
💻
Software Developer
Stack, patterns, code review, arch
📈
Active Trader
Markets, risk, analysis, journaling
📣
Growth Marketer
Campaigns, copy, analytics, SEO
🏢
Executive / C-Suite
Strategy, leadership, board, ops
🏠
Real Estate Investor
Deals, underwriting, leases, tax
✍️
Content Creator
Newsletter, YouTube, editorial
View all templates with full examples →
Pricing

Start free. Scale when
AI becomes essential.

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

Save 20%
Free

Try it out. See the difference.

$0

Free forever

  • 3 starter templates
  • Brainfile validator tool
  • Export to Claude & ChatGPT
  • Markdown download
Try Free →
Pro

For professionals who live in AI.

$149/mo

or $1,428/yr (save 20%)

  • Unlimited Brainfiles
  • All templates + vertical packs
  • Export to all platforms
  • Version history
  • Import from existing tools
Get Pro — $149/mo
Most Popular
Enterprise

For teams and power users.

$299/mo

or $2,868/yr (save 20%)

  • Everything in Pro
  • Team management
  • Shared context libraries
  • Priority support
  • Custom integrations
Get Enterprise — $299/mo
Done-For-You

We build your Brainfile for you.

$1,997

One-time. Delivered in 48 hours.

  • Custom-built by an expert
  • 30-min intake interview
  • Cross-model exports
  • 2 rounds of revisions
  • 90-day update support
Get yours built →
Done-For-You

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.

We'll reply within 24 hours to schedule your intake call.

Built for professionals who use AI daily

6
Role-specific templates
6+
AI models supported
10 min
Setup time
Forever
You own the file

Works with Claude, ChatGPT, Gemini, Copilot, Perplexity, and Cursor.

FAQ

Questions

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.
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.
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.
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.
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.

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AI-generated content is for informational purposes only and may contain errors. Always verify outputs independently. Not legal, tax, or financial advice.