Sebtember

Sebtember is a secure AI assistant powered by trusted sources — an ecosystem where people share trusted content and get clear, cited answers from personal AI assistants, never the open web. Invite and get invited to build a shared network of trusted knowledge. Pay-per-answer for catalogue owners; free for invited members. EU-hosted, GDPR-aligned, no model training on customer data. 1.5 million tokens free on signup.

Your AI assistants,
powered by trusted sources.

Sebtember develops AI assistants that instantly perform complex tasks — using only the data you control.

1.5 million tokens free on signup. No credit card. No promotional emails.

Why is this necessary?

AI is already invented.The next step is to customize it. The organizations that do will thrive. But getting there is painful — training, consultants, agents to build, all while the everyday work still has to get done.Sebtember hands you the customized part. Assistants that already know your material and do the job you actually need.One click away from getting the job done.

0
Public-web sources used. Ever.
< 3 min
From signup to first cited answer.
$0 / seat
For every teammate or client you invite.

How it works

Three steps. Zero rollout.

Onboard a brain in three minutes. No IT ticket. No migration. No per-seat math.

Step 01

Upload.

Build your secure Catalogues. Feed your private workspace with documents, images, notes, and spreadsheets. Sebtember strips them of human-readable text on ingest.

9:41
Meridian Q4
FilesUsersOutput
New collection
Files
Certificates, declarations
Add file 3
Cooling system specs
Add file 14
Field photos
Add file 12
Q4 retrofit notes
Add file 6
CRM exports
Add file 2
Step 02

Invite & Get Invited.

Grant strict, admin-level access. Seamlessly invite teams or partners to specific catalogs. Receive invitations just as easily, building a powerful, shared source of trusted information.

9:41
Meridian Q4
FilesUsersOutput
New
Users
Josephine GordonUnited Kingdom
Timothy SheenIreland
Willem de JongNetherlands
Step 03

Ask.

Stop searching. Chat with data from your built network to get precise, verifiable answers backed by citations and downloadable files.

9:41
Meridian Q4 retrofit overview
What torque setting did the Meridian retrofit specify, and where is it documented?
The Meridian Q4 retrofit is documented across two indexed source files — the defining change is the cooling assembly and its torque spec.
Cooling & torque spec

The retrofit replaces the prior plate cooler with a helical water-jacket cooling assembly, calibrated before the stator housing is torqued.

  • Preload — 18 Nm. Set on the water-jacket assembly before the housing is fitted.
  • Torque sequence — three passes. Stator housing torque is sequenced in three passes per the Q4 service note.
  • Values are verbatim. Figures come straight from the source PDFs — nothing inferred from the open web.
[1]Cooling.System.Spec.v3.pdf· p.14· PDF
[2]Q4-Retrofit-Notes.docx· §3.2· DOC
Source:You

Security & infrastructure

Built on Google. Sealed by us.

Three guarantees. No asterisks. No exceptions.

Sealed by design

Documents are stripped of human-readable text on upload. Indexed for retrieval, never readable in transit or at rest.

AES-256 · Zero-text storage

Google-grade infra

Built on Google's enterprise infrastructure. Your data never trains the model.

GCP · SOC 2 Type II

Kill switch

One click and the Catalogue is permanently wiped. No backups. No recovery. No exceptions.

Hardware-key revocable

Read more →

Built for

Yes — if any of these sound like you.

Sebtember was built for the seven sentences below. If two of them sound like a Tuesday at your company, you're our customer.

“I need instant answers from my organization's internal data.”
Stop paying your team to manually search through scattered reports. Sebtember turns your private documents into a conversational AI. Because it never uses the public web, every answer is backed exclusively by your own data.
“I need absolute data security and strict access control.”
Your data never leaves your control. Built on Google's enterprise-grade infrastructure, Sebtember strips your documents of human-readable text upon upload. Admins enforce strict access through private Catalogues, and our Kill Switch ensures deleted data is permanently wiped.
“I refuse to pay for unused software subscriptions.”
Escape the AI subscription trap. Sebtember has zero monthly or annual fees. You only pay for the exact resources you use to generate answers. Best of all? It's completely free for your invited team members and clients.
“I want my entire team accessing instant insights without paywalls.”
Innovation dies when teams worry about software costs. By removing the per-seat paywall for invited users, you grant your entire workforce the speed and clarity of AI. They get the freedom to explore; you keep your budget under control.
“I want to close deals faster by letting prospects talk to my materials.”
Move beyond static PDFs and passive newsletters. Allow potential clients to chat directly with your service catalogues and proposals to get instant answers. It is next-generation educational marketing that builds instant trust — with zero new content creation required.
“I want to offer my clients a VIP, AI-powered support experience.”
Stop the endless back-and-forth email chains. Share your content directly with clients via a private Catalogue, giving them a conversational tool for instant answers. They save time. You look like an industry pioneer.
“I need an enterprise tool with zero onboarding friction.”
Forget the massive IT rollout. Sebtember has no learning curve. Users sign up via an Invite Code and are instantly connected to shared Catalogues. The interface is intuitive on day one, revealing advanced features only as needed.

Pricing

No seats. No subscription.

Pay only for what you consume. Pool your tokens and share them across your team and clients—letting them focus on decisions, not usage caps.

Read more →