Most work does not respect application boundaries. A quarter close is a spreadsheet, then a deck, then a written summary, then an email. The usual answer is four apps, four exports and four chances to lose the formatting. Lumen’s answer is one window where those four things are the same document family, sharing the same library, the same brand and the same permissions.
The tools, and what each is genuinely for
- Lumen PDF — real editing of the text inside a PDF, plus signing, form filling, redaction that actually removes data, and conversion in both directions.
- Lumen Sheets — spreadsheets with formulas, pivots and charts, and an AI that explains a model rather than just filling cells.
- Lumen Document — long-form writing with styles, references and tracked revisions; exports to DOCX and PDF without reflowing.
- Lumen Slides — decks built from a brief or a document, held to your template so nobody has to re-brand them afterwards.
- Lumen Design — a free-form board for graphics, diagrams and short video, with a recolourable element library.
- Lumen Notes — notebooks and sections for the thinking that precedes the document, including recorded audio with a searchable transcript.
- Lumen Forms — forms, surveys and quizzes whose responses land somewhere you can immediately analyse.
- Lumen Apps — small interactive tools, authored by describing them, for the jobs a spreadsheet cannot quite hold.
- Lumen Automate — the standing version of any job: a trigger, some steps, a delivery.
- Lumen Agent — the one that drives all of the above when you would rather describe the outcome than assemble it.
What they share underneath
One library, one search
Every file any tool creates lands in the same library, indexed by content. Searching for a client name returns the contract, the deck, the note from the call and the form responses — not four separate result lists you have to reconcile.
One brand kit
Colours, fonts, logo and layout rules are defined once. A deck, a document and a social graphic made an hour apart come out consistent, because they are reading the same source — and on business plans the brand can be enforced rather than merely offered.
One sharing model
A link with an expiry, an optional password and a permission level works identically whether it points at a PDF, a form or a dashboard. Recipients need no account and no download.
- Anyone with the link can view · comments off
- Expires in 14 days · password set
- Downloads blocked · 3 people have opened it
Revoke at any time — the link dies immediately, everywhereOne balance, one bill
AI work spends from a single credit balance whichever tool it happens in. There is no per-tool subscription to reason about, and the app shows the estimated cost before a job rather than a surprise line item after it.
Four engines, one dial
Not every request deserves the same amount of thinking. Rewriting a sentence and auditing a 90-page contract are different problems, and paying the same for both is wasteful in one direction and disappointing in the other. So the depth is a dial you set per job.
| Engine | Best for | What changes |
|---|---|---|
| Fast | Quick edits in place | One pass, immediate, cheapest |
| Professional | The draft you actually keep | Plans before writing, then revises once |
| Expert | Work that goes to someone senior | Multiple review passes, checks its own claims |
| Ultra | Contracts, audits, anything you sign | Deepest analysis plus a final coverage audit |
Where your work actually lives
Editing, searching and version history run on your computer. When you ask for AI help, the part of the document the request needs is sent for processing and then discarded — your content is never used to train models, and it is never shared with other customers. Sharing is the only action that publishes anything, and it always states what the recipient will be able to do.
- Files stay where you save them — there is no mandatory cloud drive.
- Connectors like Gmail or Drive are granted one at a time and revocable at any time.
- Business plans add domain restrictions, seat controls and enforceable brand rules.
- The full boundary map lives on the security page.
The shape of a normal week
Monday a form collects the responses. Tuesday Sheets turns them into a picture. Wednesday that picture becomes three slides and a page of commentary. Thursday it goes out as a link that expires. None of those handoffs is an export, an upload or a re-brand — which is the entire argument for having them in one place.
Platform questions
Do I have to use all ten tools?
No — most people live in two or three. The others cost nothing until you open them, and they are there for the week you need one.
Can my team use this together?
Yes. Team and Business plans add shared seats, a shared credit pool, role controls, domain restrictions and enforceable brand rules. See business plans.
What formats can I bring in and take out?
PDF, DOCX, XLSX, PPTX, CSV, common image formats and plain text all open natively and export back. Nothing you make here is trapped in a format only Lumen can read.
Is there a mobile app?
You can start a job from your phone and pick it up on the desktop, and shared links open in any browser without an account.
How is this different from using several separate AI tools?
Context. A separate tool per document type means re-explaining your brand, your files and your permissions every time. Here the deck already knows the spreadsheet it came from, and both already know your brand.
