Private beta — invites sent weekly

Ask your PDFs. Get citations.

Lumen reads hundreds of filings, papers and transcripts at once, then answers in seconds with a page-level citation on every claim. Built for analysts and consultants who can't put a guess in a client deck.

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Ask your PDFs. Get citations.

From messy archive to cited answer

Three steps, about four minutes the first time.

01

Load your library

Drag in PDFs, filings, earnings transcripts or exported notes. Lumen indexes every page, table and footnote in minutes.

02

Ask in plain language

“Which contracts cap liability below twice annual fees?” No query syntax, no boolean strings, no keyword hunting.

03

Check the citation

Every claim carries a page-level link. Click it, read the paragraph, and decide whether it belongs in your deck.

Answers you can trace to the page

Lumen keeps the link between a sentence and its source. Open any answer and the exact paragraph, page and document are one click away — so review takes minutes, not an afternoon.

See a sample answer
Google Drive
Notion
SharePoint
Dropbox
Slack
Zotero
L

What analysts use it for

Four jobs that currently eat a week of billable time.

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Deal diligence

Deal diligence

See the workflow

Compare eighty target PDFs for change-of-control clauses, customer concentration and capex promises before the first call.

Earnings season

Earnings season

See the workflow

Ask ten transcripts the same question and get one comparison back, with the quarter and page for every figure.

Market maps

Market maps

See the workflow

Turn three hundred industry reports into a sourced landscape of players, pricing models and headcount claims.

Literature reviews

Literature reviews

See the workflow

Screen a folder of papers for method, sample size and result, with citations you can paste straight into the draft.

Your documents stay yours

Your documents stay yours

Lumen is built for client-confidential material. Security work is public and ongoing, and here is exactly where it stands today.

  • SOC 2 Type II audit in progress, report shared as soon as it is issued
  • Your files and questions are never used for model training — contractually
  • Zero retention mode discards prompts and outputs after each session
  • SSO with Okta and Entra ID, plus admin audit logs
  • TLS 1.3 in transit, AES-256 at rest, per-workspace keys
  • EU or US data residency, chosen per workspace
Request the security pack
Early access

Founding rates, locked

Join the waitlist free. Your rate holds for as long as you stay on the plan.

Solo
For one analyst with a growing PDF archive.
$29/ month
  • 200 documents in your library
  • 1,000 answers a month
  • Page-level citations, export to Word
  • PDF, DOCX and transcript uploads
  • Email support
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Team
Founding rate
For a research team working out of one shared library.
$79/ month per seat
  • Unlimited documents
  • Unlimited answers
  • Shared workspaces and folders
  • SSO with Okta and Entra ID
  • Zero retention mode
  • Priority support
Join the waitlist
Firm
For firms with client confidentiality requirements and their own model routing.
Customannual
  • Everything in Team
  • Your own model endpoints
  • Regional data residency (EU or US)
  • DPA, security review and SAML
  • Named onboarding engineer
Talk to us

From the private beta

Three people who ran Lumen against their own documents.

MT

Mara T.

M&A analyst, mid-market boutique

Diligence used to mean a weekend with a search box. I asked six questions across a 400-page data room and had sourced answers in twenty minutes.
DR

Devan R.

Strategy consultant

The citation is the product. I can hand a draft to a partner and every number already points at a page.
PS

Priya S.

In-house counsel, PE-backed software company

It surfaced a liability cap buried in an appendix that two of us had missed. That alone paid for the year.

Before you join the waitlist

PDFs, DOCX, decks and earnings transcripts, up to 2,000 pages per document. Scanned files are OCR'd on upload, and tables and footnotes are indexed separately so a figure in an appendix is still findable.

Get early access

We let people in weekly. Tell us where you work and what you research, and we'll send an invite with your founding rate attached.

  • Founding rate locked for as long as you stay on the plan
  • 50 documents indexed before you pay anything
  • A 20-minute walkthrough with the team
  • Say no thanks and we delete your details

No card. One email when your invite is ready.

We email once, when your invite is ready.

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