Show HN: Fenzo AI – Interactive Micro-courses on any topic

The perfect course, every time.

Type any question or upload your notes. Get an interactive course, built just for you.

Free, Ready in 60s

or try one of these

Forward Deployed EngineeringExplain Offside in SoccerSummarize Atomic Habits

Studying for an exam?

Upload your notes, test results, or a textbook chapter — we’ll build you your own personalized prep course.

How it works

One question in.A structured course out.

Here's a quick demo.

“Agile or Waterfall — what fits your project?”

Methodology Compass

Regulated Banking Platform

50 engineers, a 200-page spec, a legally-mandated Q2 deadline, and board-approved scope changes.

Team Size 5070

SmallLarge

Requirement Uncertainty 5020

Fully KnownHighly Uncertain

Scope Flexibility 50

RigidFlexible

Deadline Rigidity 50

FlexibleFixed

Stakeholder Involvement 50

RarelyContinuously

Why Agile leads

Scope Flexibility and Requirement Uncertainty both push moderately toward an Agile fit.

Do you find this helpful?

Fenzo vs. ChatGPT

Stop prompting. Start learning.

Most AI tools were built to answer questions. Fenzo is designed to make sure you actually internalize the answer.

ChatGPT

Prompt fatigue

Message ChatGPT…

↻ Replaying…

See the difference for yourself — paste a prompt you've used on ChatGPT.

Why Fenzo works

Backed by the science of learning.

Finally, a learning platform actually built for the AI era. Master any topic through personalized, interactive lessons.

Active learning > passive learning.

59%

73%

PassiveActive

Average pass rate · Freeman et al., PNAS 2014

What the science says

Students who get hands-on are 1.5× more likely to pass their class.

How Fenzo does it

Every Fenzo lesson is interactive. No passive reading or watching, ever.

AI atrophy is real.

Skill retention over time · with vs. without practice

What the science says

Offloading thinking to AI erodes the very skills you're trying to build.

How Fenzo does it

Fenzo makes you do the thinking — guided, but never done for you.

Answers ≠ understanding.

Retrieval practiceRe-reading

Long-term recall · retrieval vs. re-reading

What the science says

Recalling information beats re-reading it for building durable understanding.

How Fenzo does it

Lessons weave in quizzes and recall prompts, so it sticks.

Real courses, created by the community.

Here's what people are learning right now with Fenzo.

Python Foundations Through Practice

UI/UX Essentials For Usable Interfaces

Leadership Skills For People Managers

Digital Marketing Strategy For Small Brands

Big Data Analytics for Distributed Systems

Creative Writing Fundamentals Workshop

Loved by curious minds everywhere.

Jamie L.

Physics Student

"I typed in 'quantum entanglement for beginners' and had a full interactive course in under a minute. The flashcards alone are worth it."

SR

Sofia R.

Software Engineer

"The live code editor is exactly what I needed to practice Python without switching between ten different tabs. Genuinely saves me time."

Dan T.

High School Teacher

"I started using Fenzo to prep before my own lessons. The AI tutor asks back-questions I wasn't expecting, it's become part of my planning routine."

PM

Priya M.

History Enthusiast

"Fenzo turned my afternoon curiosity into a two-hour deep dive on Byzantine history. I genuinely didn't expect to finish the whole thing."

Leila K.

Debate Coach

"Generated a course on stoic philosophy for a debate class. 12 lessons, solid structure, ready in under 3 minutes."

OF

Omar F.

Product Manager

"I've tried Coursera, Udemy, YouTube playlists. Fenzo is the only one that felt like it was built for exactly what I needed that day, not a general audience."

Finally get it.

The only way to understand what Fenzo really does is to use it. Takes one minute.