How does AITEZA differ from ChatGPT, Copilot or Gemini?

AI assistants like ChatGPT, Copilot or Gemini help individual people in your team. AITEZA organises your documents per customer and project in datarooms, brings your customers in via Relay and answers questions from the documents in the room, with sources. Your data stays in Germany and is not used for training.

Can Microsoft Copilot do the same as AITEZA?

Not in the same way: with AITEZA you decide which customer, project or department dataroom the AI searches, while Copilot usually decides itself and searches everything you can access. So AITEZA answers do not mix up projects or pick up an outdated draft, and every statement links to its source. AITEZA also adds what an office assistant lacks: Relay for customers without an account, plans and drawings as lasting dataroom knowledge, workflows with fixed criteria and free choice of AI models, hosted in the EU or on-premise.

How does AITEZA differ from a DMS or file sharing?

A DMS or a file sharing tool stores files and finds them again. AITEZA understands the content: instead of a list of results you get an answer with sources, even across several documents. And your customers access the same dataroom via Relay, always see the latest version and can ask questions themselves.

Comparison

Built for the work that matters

Microsoft Copilot and Langdock are good AI assistants. AITEZA is built for something else: working with large, confidential document collections where every answer has to be right. For projects with hundreds of contracts, plans and inspection reports. For answers you can check at the source with one click. And for costs you know before you ask. Here are the differences in detail.

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As of October 2026. Based on the vendors' public documentation and our own tests.

What AITEZA is built for

01
Datarooms without rigid limits
Datarooms can be nested as deep as you need, and permissions and settings are inherited. One chat searches several datarooms at once, even with hundreds of documents.
02
Plans analysed in detail
AITEZA looks at plans itself, zooms into details, counts components and compares revisions. Plans and images stay in the dataroom as knowledge, for the whole team.
03
Every answer checkable, every euro visible
Answers point to the exact spot in the document and are checked against the sources. Before you send a request, you see what it will probably cost.

Feature by feature

The comparison focuses on working with company documents. Where other vendors do something similarly well, the table says so.

Available
Partly or with limits
Not available

Feature by feature
Criterion	AITEZA	Microsoft Copilot	Langdock
Knowledge and datarooms
Datarooms with sub-rooms and inherited permissionsOrganised the way your company works: per customer, project and department, nested as deep as you need. Permissions, models and instructions automatically apply to the sub-rooms.	Yes	PartlySharePoint permissions only, no datarooms	PartlyFlat folders with at most 100 files
You decide where the agent searchesYou choose the datarooms the assistant works in. It searches on its own, reads up and combines information, but only there. That makes answers far more precise. Every statement links to the passage.	Yes	PartlyThe agent decides where to search	PartlyLimited to folders with at most 100 files
Several datarooms in one chatSwitch datarooms on and off in the chat at any time, for example project, standards and contract templates together.	Yes	NoNo datarooms, only single files or everything	PartlyOnly small folders with at most 100 files
Customers and partners
Bring in customers and partners without an accountWith Relay you share a dataroom with customers and partners without them needing an account. They always see the latest version, ask their own questions and upload their own documents. Shares expire automatically.	Yes	NoGuests only see files, AI only with their own licence	NoOnly for users with their own licence
Plans, images and tables
Plans, drawings and photos become lasting knowledgeAITEZA looks at plans itself, zooms into details, counts components and compares revisions. Plans, drawings and photos stay in the dataroom as knowledge, for the whole team.	Yes	PartlySingle images in the chat, not stored as knowledge	PartlySingle images in the chat, not in folders
Excel and CSV via SQL: fast and exactAITEZA queries tables directly with SQL. Totals, groupings and filters in seconds, exact and traceable, also for tables in the dataroom.	Yes	PartlyPython code in the chat, slower and more effort	PartlyPython code in the chat, not for tables in folders
Reviews and automation
Checks against fixed criteria, result as a tableDefine your review criteria once, for example for quotes, contracts or inspection reports. AITEZA checks every document against them and delivers the result as a clear table.	Yes	PartlyPrompts only, no fixed review process	PartlyOnly via self-built workflows
Workflows and automationOfficial n8n nodes with 89 actions connect AITEZA with your other systems and processes.	Yes	YesVia Power Automate	YesWorkflow builder
Data protection and hosting
Hosted in the EU or on your own infrastructureAITEZA runs in data centres in Frankfurt am Main. If you prefer, as your own private cloud or on-premise on your hardware.	Yes	PartlyMicrosoft cloud only, with EU Data Boundary	PartlySelf-hosting only from 1,000 users
Your own self-hosted AI modelsAlongside the models of all major vendors, you connect your own self-hosted models, selectable per chat or dataroom. Sensitive data never leaves your network.	Yes	NoOnly models from the Microsoft cloud	NoOnly models from cloud providers
Reliability and costs
Answers checked against the sourcesAnswers from datarooms are checked for plausibility and source reference before you see them.	Yes	PartlyCitations without a documented check	NoNo documented check
See costs before sendingThe expected cost of a request in euros, before you send it.	Yes	NoFlat fee per user, no cost preview	NoFlat fee per user, no cost preview
Core features
Connect your systems via MCPUsing the open MCP standard, you connect AITEZA to SharePoint, Outlook, Jira and many other systems. Everyone only sees what their own account is allowed to see.	Yes	YesVia Copilot Studio	Yes
Web searchCurrent information from the internet, in addition to your datarooms if you want.	Yes	Yes	Yes
Single sign-onSign in with your company account, with multi-factor authentication if you want.	YesIn the enterprise plan	Yes	Yes
Prompt library for the teamSave, share and reuse good instructions.	Yes	YesPrompt Gallery	YesIn workspaces
Create and edit Office filesCreate Word, PowerPoint and Excel files in your design and fill in existing templates.	Yes	Yes	PartlyExcel only via add-in

Knowledge and datarooms

Datarooms with sub-rooms and inherited permissions
Organised the way your company works: per customer, project and department, nested as deep as you need. Permissions, models and instructions automatically apply to the sub-rooms.
AITEZA
YesYes
Microsoft Copilot
PartlySharePoint permissions only, no datarooms
Langdock
PartlyFlat folders with at most 100 files
You decide where the agent searches
You choose the datarooms the assistant works in. It searches on its own, reads up and combines information, but only there. That makes answers far more precise. Every statement links to the passage.
AITEZA
YesYes
Microsoft Copilot
PartlyThe agent decides where to search
Langdock
PartlyLimited to folders with at most 100 files
Several datarooms in one chat
Switch datarooms on and off in the chat at any time, for example project, standards and contract templates together.
AITEZA
YesYes
Microsoft Copilot
NoNo datarooms, only single files or everything
Langdock
PartlyOnly small folders with at most 100 files

Customers and partners

Bring in customers and partners without an account
With Relay you share a dataroom with customers and partners without them needing an account. They always see the latest version, ask their own questions and upload their own documents. Shares expire automatically.
AITEZA
YesYes
Microsoft Copilot
NoGuests only see files, AI only with their own licence
Langdock
NoOnly for users with their own licence

Plans, images and tables

Plans, drawings and photos become lasting knowledge
AITEZA looks at plans itself, zooms into details, counts components and compares revisions. Plans, drawings and photos stay in the dataroom as knowledge, for the whole team.
AITEZA
YesYes
Microsoft Copilot
PartlySingle images in the chat, not stored as knowledge
Langdock
PartlySingle images in the chat, not in folders
Excel and CSV via SQL: fast and exact
AITEZA queries tables directly with SQL. Totals, groupings and filters in seconds, exact and traceable, also for tables in the dataroom.
AITEZA
YesYes
Microsoft Copilot
PartlyPython code in the chat, slower and more effort
Langdock
PartlyPython code in the chat, not for tables in folders

Reviews and automation

Checks against fixed criteria, result as a table
Define your review criteria once, for example for quotes, contracts or inspection reports. AITEZA checks every document against them and delivers the result as a clear table.
AITEZA
YesYes
Microsoft Copilot
PartlyPrompts only, no fixed review process
Langdock
PartlyOnly via self-built workflows
Workflows and automation
Official n8n nodes with 89 actions connect AITEZA with your other systems and processes.
AITEZA
YesYes
Microsoft Copilot
YesVia Power Automate
Langdock
YesWorkflow builder

Data protection and hosting

Hosted in the EU or on your own infrastructure
AITEZA runs in data centres in Frankfurt am Main. If you prefer, as your own private cloud or on-premise on your hardware.
AITEZA
YesYes
Microsoft Copilot
PartlyMicrosoft cloud only, with EU Data Boundary
Langdock
PartlySelf-hosting only from 1,000 users
Your own self-hosted AI models
Alongside the models of all major vendors, you connect your own self-hosted models, selectable per chat or dataroom. Sensitive data never leaves your network.
AITEZA
YesYes
Microsoft Copilot
NoOnly models from the Microsoft cloud
Langdock
NoOnly models from cloud providers

Reliability and costs

Answers checked against the sources
Answers from datarooms are checked for plausibility and source reference before you see them.
AITEZA
YesYes
Microsoft Copilot
PartlyCitations without a documented check
Langdock
NoNo documented check
See costs before sending
The expected cost of a request in euros, before you send it.
AITEZA
YesYes
Microsoft Copilot
NoFlat fee per user, no cost preview
Langdock
NoFlat fee per user, no cost preview

Core features

Connect your systems via MCP
Using the open MCP standard, you connect AITEZA to SharePoint, Outlook, Jira and many other systems. Everyone only sees what their own account is allowed to see.
AITEZA
YesYes
Microsoft Copilot
YesVia Copilot Studio
Langdock
YesYes
Web search
Current information from the internet, in addition to your datarooms if you want.
AITEZA
YesYes
Microsoft Copilot
YesYes
Langdock
YesYes
Single sign-on
Sign in with your company account, with multi-factor authentication if you want.
AITEZA
YesIn the enterprise plan
Microsoft Copilot
YesYes
Langdock
YesYes
Prompt library for the team
Save, share and reuse good instructions.
AITEZA
YesYes
Microsoft Copilot
YesPrompt Gallery
Langdock
YesIn workspaces
Create and edit Office files
Create Word, PowerPoint and Excel files in your design and fill in existing templates.
AITEZA
YesYes
Microsoft Copilot
YesYes
Langdock
PartlyExcel only via add-in

In short

Microsoft Copilot
Good if you mainly work in Outlook, Teams and Office. For project work with many documents, the structure is missing: no datarooms, no say in where the agent searches, no self-hosted models and no cost preview.
Langdock
A flexible chat platform with workflows and a prompt library. Too narrow for large document collections: folders with at most 100 files, plans and tables only in the chat rather than as knowledge in the folder, no self-hosted models.

Questions about the comparison

All information to the best of our knowledge, as of October 2026. It is based on the vendors' publicly available documentation and our own tests. Features and plans of other vendors change frequently and may differ by licence. If something no longer seems accurate to you, please let us know. Product and company names mentioned are trademarks of their respective owners. We are not affiliated with Microsoft or Langdock.

Test AITEZA with your real documents.

Bring what you are working on right now: contracts, plans, inspection reports. In the call we upload them and show you how quickly you get reliable answers with sources. 30 minutes, no obligation.

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