The AI revolution is leaving
builders behind
Everyone's consuming AI. Few are building it. That's why the gap between API users and AI architects is becoming a chasm.
You've forgotten how to build
You used to ship code every day. Now you watch tutorials, prompt ChatGPT, and wonder where your builder identity went.
API dependency isn't a moat
Your competitors have access to the same OpenAI endpoints. When the pricing changes or the service goes down, so does your business.
Surface knowledge isn't enough
Knowing how to use LangChain doesn't mean you understand transformers. When things break—and they will—you're helpless.
"What if you could understand AI so deeply
that you could build it yourself?"
That's not a rhetorical question. That's what we teach.
Executive education meets
builder culture
Inspired by MasterClass production quality. Grounded in MIT/Stanford rigor. Designed for people who ship.
First Principles
We don't teach you to use libraries. We teach you to understand the math, the architecture, the intuition. So you can build anything.
Build From Scratch
Every course includes building the system from zero. Not tutorials. Not copy-paste. Real engineering that stays with you forever.
The Feynman Method
If you can't build it, you don't understand it. Our courses are designed around this truth. Understanding comes from doing.
What others teach
- Use LangChain to call APIs
- Copy-paste from tutorials
- Prompt engineering tricks
- Surface-level integrations
What we teach
- Build transformers from scratch
- Understand attention mechanisms deeply
- Train and deploy your own models
- Create defensible technical moats
Discover Your AI Learning Path
Answer 8 quick questions and get personalized course and bundle recommendations based on your role, experience, and goals.
No email required. Get your personalized results instantly.
Build Your Career Moat
Transform from API user to AI architect
You're a senior engineer or tech lead who feels the ground shifting. Junior devs are using ChatGPT, but you know there's a deeper game. You want the skills that can't be automated—the ability to build the systems everyone else just uses.
You might be thinking...
- "I know prompt engineering isn't a real moat"
- "I'm worried junior devs with AI tools will outpace me"
- "I need skills that put me in the top 1%"
After completing the masterclass:
- Land staff/principal roles at $300K-$500K
- Build portfolio projects that demonstrate real understanding
- Become the AI expert your company turns to
- Future-proof your career with first-principles knowledge
Build Your Company Moat
Own your AI stack, compete with giants
You're a founder who knows that dependence on OpenAI or Anthropic APIs is a liability, not a strategy. You want to build proprietary AI that VCs value at a 20%+ premium—technology that becomes your unfair advantage.
You might be thinking...
- "I can't afford a $500K ML engineering team"
- "API costs are killing my margins at scale"
- "My competitors could copy my prompts tomorrow"
After completing the masterclass:
- Build proprietary LLMs without a massive team
- Reduce AI costs by 10-100x with custom models
- Create defensible IP that VCs pay premium for
- Eliminate vendor lock-in and API dependency
Choose Your Path to Mastery
From building LLMs to launching sovereign infrastructure—each course creates lasting competitive advantage.
Build Your Own LLM
From Tokenization to Training: Own the Technology Behind ChatGPT
The best way to understand AI is to build it yourself.
Self-Paced
$1997
Cohort
$6,997
Founder
$19,997
Build Your Own Reasoning Model
Create AI That Thinks Before it Answers—Stop Using AI, Start Owning It
The models winning today think before they answer. Learn to build that capability.
Self-Paced
$1497
Cohort
$5,997
Founder
$17,997
Build Your Own Frontier AI
Master Mixture-of-Experts, Advanced Attention, 64x Efficiency—Own Production-Grade AI
The ONLY masterclass teaching you to build production-grade frontier AI systems from scratch—cut API costs 90%, own your stack, stop renting from OpenAI.
Self-Paced
$1997
Cohort
$6,997
Founder
$19,997
Build Your Own Image Generator
Train Vision Models from Scratch—Stop Renting, Start Owning
Create images from words. Own the visual AI your competitors rent.
Self-Paced
$1997
Cohort
$6,997
Founder
$19,997
Build Your Own Autonomous AI Agent
The Agent Architecture Blueprint™ — Own Your Infrastructure, Not Frameworks
Build agent systems from first principles—ReAct loops, tool orchestration, memory systems, multi-agent coordination. Framework users are commoditized. Infrastructure builders are irreplaceable.
Self-Paced
$1997
Cohort
$6,997
Founder
$19,997
Build Your Own Multi-Agent AI Teams
Train Agent Swarms That Collaborate at Scale—Own Your AI Workforce
One agent is powerful. Multiple agents working together are transformative.
Self-Paced
$1497
Cohort
$5,997
Founder
$17,997
Bundle & Save with Learning Paths
Accelerate your transformation with curated course bundles designed for serious builders.
Founder's AI Stack
Everything you need to build competitive AI
Build LLM + Reasoning Models + MoE + Agentic Systems + Multi-Agent + AI Product Factory
What's Included:
- Build Your Own LLM
- Reasoning Models
- Mixture of Experts (MoE)
- Agentic Systems
- Multi-Agent Systems
- AI Product Factory
AI Engineer Complete
The complete curriculum to become elite
All 14 Hardcore Developer courses—from ML fundamentals to frontier AI systems
What's Included:
- All 14 Hardcore Developer courses
- ML & Deep Learning Intuition
- LLMs, Reasoning, MoE, Diffusion
- Agentic & Multi-Agent Systems
- GraphRAG, SLMs, Fine-tuning
- Production & Analytics tools
Full Catalog Access
Master everything we teach
All 21 masterclasses—complete access to the entire DrLee.ai curriculum
What's Included:
- All 21 masterclasses
- Hardcore Developer (14 courses)
- Citizen Developer (7 courses)
- Token Economy & Web3 included
- Vibe Marketing included
- Lifetime access to all content
Not sure which path is right for you?
Take the assessmentInvestment in Your Future
Choose Your Path to Mastery
Whether you're advancing your career or building a startup, these masterclasses deliver ROI that compounds for years. The knowledge to build AI from scratch is worth far more than API credits.
Self-Paced
Learn at your own pace with lifetime access
$2997
$1997
USD
- 15-20 hours of video content
- Complete source code & notebooks
- Lifetime access to materials
- Community Discord access
- Certificate of completion
30-day money-back guarantee
Cohort-Based
Live instruction with accountability
$11997
$6997
USD
- Everything in Self-Paced
- 12 weeks of live sessions
- Weekly office hours with instructor
- Private cohort community
- Code reviews & feedback
- Direct access to Dr. Lee
30-day money-back guarantee
Founder's Edition
For serious founders building AI companies
$29997
$19997
USD
- Everything in Cohort-Based
- 6x 1:1 architecture sessions
- Custom project code reviews
- Implementation consulting
- Lifetime alumni network access
- Priority support & updates
30-day money-back guarantee
Stop Renting from OpenAI. Start Owning Your Technology.
Bootcamps
$11K-$17K for API tutorials
ML Engineer
$200K-$300K/year to hire
DrLee.ai
Build frontier AI yourself
FAQ
Frequently Asked Questions
No. This is the opposite. We don't teach you to call APIs—we teach you to build the systems behind them. In "Build Your Own LLM," you'll start with a blank Python file and build every component of a transformer: tokenization, embeddings, attention mechanisms, the decoder. By the end, you'll have built something that actually generates coherent text.
This is first-principles learning. It's hard. It's demanding. But it's the only way to truly understand AI.
These masterclasses are specifically designed for technical founders and senior engineers who need to make architectural decisions—not become full-time ML researchers. We start every concept with a TED Talk-style explanation of the "why" before diving into implementation.
The goal is to give you enough depth to architect AI systems, evaluate technical hires, and make defensible technology decisions for your startup. You'll understand trade-offs that API-only founders never grasp.
Search for "Build your own LLM from scratch" or "Reasoning models course"— you won't find much. Sebastian Raschka's book exists, but there's no live course teaching this systematically. Reasoning models (like OpenAI's o1) are cutting-edge—the technology was just released. Mixture of Experts architecture? That's how Mistral competes with OpenAI at 1/10th the cost.
We're teaching frontier AI that most courses won't cover for years.
You have lifetime access to all materials regardless of your tier. The cohort provides live instruction and accountability, but you can always revisit content at your own pace. Many students go through materials twice—first with the cohort for structure, then again independently for deeper understanding.
We also offer office hours specifically for students who want extra help on challenging concepts.
If you're building an AI startup, the 1:1 architecture sessions alone are worth the premium. You get direct access to review your specific system design, discuss trade-offs for your use case, and get guidance on technical decisions that could cost you months of wrong turns.
Compare to hiring an ML consultant at $300-500/hour or making expensive architecture mistakes. For serious founders, it's a fraction of the alternative cost.
Yes. Most tech companies have professional development budgets of $2,000-$5,000 that rarely get used. Our pricing is designed to fit within these thresholds. We provide invoices and certificates of completion that satisfy most L&D requirements.
We've had students from Google, Meta, Stripe, and numerous startups get full reimbursement.
Stop Consuming.
Start Building.
Join thousands of founders and engineers who chose to understand AI deeply—not just use it. Your builder identity is waiting.