High-Context AI
Where your context compounds.
Your strategies, frameworks, and expertise — structured to make your work acceleratable with AI that thinks like you.
The inversion
Your context should own your interfaces—
not the other way around.
Every AI tool is low-context by default. Switch tools, start over. Penumbra is the high-context layer underneath — your knowledge persists and pipes into whatever interface you're working in.
Low-Context AI
Every session is a stranger. Your context is trapped inside each tool.
- →Forgets everything between sessions
- →Context is locked to one platform
- →Switch tools? Start from scratch
- →Your accumulated thinking belongs to the vendor
High-Context AI
Every session is a colleague. Your context lives with you and works everywhere.
- →Structured context that persists and compounds
- →Use it with Claude, GPT, Cursor, or whatever's next
- →Your knowledge is yours — pipe it wherever you work
- →The interface is just a window into your graph
The AI you use will change. Your accumulated context shouldn't.
Who it's for
Context Curators come in many forms.
Consultants
Stop rebuilding client context every engagement. Structure it once, carry it forward, deliver sharper work faster.
Founders & Executives
Your strategic picture compounds instead of evaporates. Every doc, every decision, every market signal — structured and queryable.
Analysts & Researchers
Structure research once, query it forever. The Q1 insight connects to the Q4 anomaly without digging through folders.
Operators
Institutional memory that doesn't walk out the door. Every process, decision, and lesson — retained and accessible.
Non-Technical AI Power Users
You jumped into Claude Code and agentic tools but the memory layer still requires VS Code and GitHub. Penumbra doesn't.
Investors
Pattern-match across portfolio and deal flow. The signal in Company A surfaces automatically when it appears in Company Z.
Capabilities
From raw docs to compounding context.
Drop in anything.
PDFs, audio, video, text, Markdown. Connect Notion, Google Docs, Confluence. If it contains knowledge worth keeping, Penumbra can ingest it.
- Batch upload entire document libraries
- Automatic transcription for audio/video
- Live sync with connected sources
- Drag-and-drop or API upload
Your domain model
Describe your world.
We'll do the rest.
Every expert has a mental model — the invisible structure that tells you what matters and what's noise. Competitors, decisions, risks, dependencies. You've spent years building it.
Penumbra's Shape Designer turns that mental model into a structured lens in a single conversation. No schema editors. No configuration forms. Just talk.
Tell it what you track. Tell it how things connect. Tell it what you call things in your world — not what some vendor decided to call them.
"You don't learn Penumbra's language. It learns yours."
From a single chat, you'll have a cognitive framework that Penumbra can apply to every source you feed it. Rinse and repeat.
→ Call recordings get structured through your lens.
→ Notion pages get structured through your lens.
→ Hundred-page PDFs get structured through your lens.
And when your thinking evolves — because it will — you just have another conversation.
Comparison
How Penumbra compares
| Penumbra | ChatGPT / Claude | Notion / Obsidian | Custom RAG | |
|---|---|---|---|---|
| Context persists across sessions | ✓ | ✗ | ✗ | partial |
| Works across AI providers | ✓ | ✗ | n/a | build it |
| Structured extraction, not summaries | ✓ | ✗ | ✗ | build it |
| Your vocabulary enforced | ✓ | ✗ | ✗ | build it |
| Cross-document connections | ✓ | ✗ | manual | partial |
| Setup time | minutes | n/a | hours | months |
Context persists across sessions
Works across AI providers
Structured extraction, not summaries
Your vocabulary enforced
Cross-document connections
Setup time
Early Access