Now in early access · v0.4

Meet your first learning agent. AI hands you answers, but they don't stick. Kapy makes sure they stick.

The agent learns how you learn, reminds you what to revisit before you forget, and promotes active learning so you don't just consume content. The best learning experience possible, grounded in the science of learning.

your-canvas · transformers
▶ YouTube · imported 2h ago
26:18
3Blue1Brown — Attention in transformers
6:42 / 26:18
⟁ kapy · analyzing
Transcribed 26 min video
Extracted 14 key concepts
Generated runnable code snippet
Building practice material|
{ } python · runnable
def attention(Q, K, V):
    d_k = Q.shape[-1]
    scores = Q @ K.T / sqrt(d_k)
    # scale prevents softmax saturation
    return softmax(scores) @ V
▶ Run · 0.3ms
◈ visualization · kapy generated
Attention weights — layer 4, head 2
QKVoutprojattnres
? recall · due today
Why scale attention scores by √d_k?
A Normalize the gradients
B Prevent softmax saturation
C Reduce memory usage
How Kapy works

Close the loop of learning.

Most tools keep your learning scattered across tabs, chats, notes, and links. Kapy brings them into one active canvas, so you stop context switching and start connecting what you learn.

Kapy juggling Notion, ChatGPT, Anki, NotebookLM, and Excalidraw — all your tools, unified
1 Capture

Drop anything in. Kapy gets it.

Articles, YouTube, PDFs, your half-thoughts at 1am. Kapy reads everything and pulls out what matters.

Kapy reading a book — capturing your content
2 Connect

Kapy stitches the pieces together.

Like a thoughtful study partner, Kapy spots the threads between what you watched, read, and asked — and draws them.

Kapy on a laptop — connecting your ideas
3 Close the loop

Recall it when it matters.

Quizzes, spaced reviews, and gentle nudges — so what you learned actually sticks. No more re-Googling what you read last week.

Kapy holding a lightbulb — closing the learning loop

The Old Way (Linear)

Passive Consumption

Watching videos or reading articles without interaction. 90% is forgotten by tomorrow.

Fragmented Notes

Scattered bookmarks, Notion pages, and physical notebooks that never talk to each other.

The "Search" Loop

Spending 20 minutes re-finding that one specific diagram you saw last month.

youtube.com
notion.so
notes.app
paper.pdf

The Kapy Way (Agentic)

Active Learning

Kapy turns content into interactive lessons and quizzes automatically. You learn by doing.

Unified Knowledge Graph

Every piece of information is connected visually. See the "big picture" of your learning.

Spaced Recall

Kapy nudges you to review exactly what you're about to forget. Knowledge becomes permanent.

▶ youtube Karpathy — GPT from scratch
⟁ kapy summary attn = Q·Kᵀ/√d
? recall · due today Why divide by √d_k?
Stop context switching

One canvas. Every loose thread.

Twelve open tabs. A Notion you forgot about. Half a notebook. Kapy folds it all into a single living canvas — and works on it with you, in the open.

  • Drop a link, watch Kapy summarize, outline, and quiz it.
  • Visual canvas means you can see how ideas connect.
  • Agentic — Kapy proposes the next step, you approve.
  • Private by default. Your canvas stays yours.
▶ Imported · 12 min Karpathy — Let’s build GPT
★ Auto-summary by kapy Three things to remember about self-attention →
⟁ kapy is thinking Connecting this to your “Backprop” canvas from Tuesday
{ } python · runnable attn = (Q @ K.T) / sqrt(d_k)
? recall · due today What problem does multi-head attention solve?
easy82%

better long-term retention with active recall vs. passive reading

89%

of students forget lecture content within one week

Research

"Students in traditional lecture classes were 1.5× more likely to fail than those in active-learning classes."

Freeman et al., PNAS 2014 · MIT Active Learning Initiative
Our mission

Turn AI from an answer machine into an active learning partner.

Kapy helps you retrieve, explain, and revisit ideas — because lasting learning comes from active recall, spacing, and effortful practice. Not from reading the same thing twice.

Retrieval practice Spaced repetition Self-explanation Active recall Effortful practice
Kapy helping a learner
Who Kapy helps

For anyone who needs knowledge to actually stick.

A lecture, a paper, a YouTube deep-dive, a podcast. Whatever you're learning — Kapy turns it into something you can actually recall when it counts.

Med students

Kapy for medicine

Turn dense anatomy lectures and clinical guidelines into spaced flashcards, visual maps, and recall quizzes — so the knowledge is there on exam day and on the ward.

Developers

Kapy for developers

Watch a tutorial, get runnable code snippets, concept maps, and quiz prompts — automatically organized on your canvas. Stop re-reading docs you already read.

Researchers

Kapy for researchers

Papers, talks, and half-formed ideas — dropped onto one canvas. Kapy threads connections across your reading and surfaces what you're forgetting between sessions.

Teachers

Kapy for teachers

Build learning canvases for your students. Turn your lesson materials into interactive practice — and see what your class actually understands vs. what they think they understand.

Your learning partner

Stop consuming. Start knowing.

Bring the things you’re curious about. Kapy brings the structure, the questions, and the gentle persistence to make sure they stick.

— with care, the Kapybara team
Kapy resting peacefully after a great learning session