There is no single best AI. What matters is your working environment, the type of task and the sensitivity of the data. We advise vendor-neutrally and combine where it makes sense.
Works directly in Outlook, Teams, Word and SharePoint with your company data and respects existing permissions. Requires a suitable Microsoft 365 licence. Microsoft commits not to use prompts and company data to train the foundation models.
Versatile all-round assistant with custom GPTs and many connectors. In the business and enterprise editions, business data is not used for training by default, according to OpenAI.
Strong with long documents, demanding texts, analysis and coding. In the Team and Enterprise editions, inputs are not used for training by default, according to Anthropic.
The obvious choice for companies working with Google Workspace. Gemini respects Workspace permissions; EU data regions are available according to Google.
Open models on the IONOS AI Model Hub, processed in Germany without storing inputs. Our recommendation for sensitive data, knowledge assistants and automated processes.
Company AI →In practice many companies use two tools: one for office work and one for sensitive data and processes. Clear rules on which data may go where are essential.
| Your question | Our recommendation | Why |
|---|---|---|
| Working in Outlook, Teams, Word and SharePoint | Microsoft Copilot | Uses your existing Microsoft 365 data and permissions |
| Long documents, contracts, analysis, coding | Claude | Very large context windows and strong writing quality |
| Broad all-round assistant with custom assistants | ChatGPT | Large ecosystem, custom GPTs, many connectors |
| Your company works with Google Workspace | Gemini | Integrated directly into Gmail, Docs and Drive |
| Sensitive data, professional secrecy, customer requirements | Sovereign company AI (IONOS) | Processing in Germany, no storage, no training |
| Recurring processes with fixed rules | n8n without AI | Reliable, auditable, inexpensive |
| Processes with emails, PDFs and free text | n8n with an AI step | AI only where content needs to be understood |
Information on data protection and data location is based on the vendors' publications (October 2026) and depends on licence and procurement route. We check it for your case before you decide. Our recommendations reflect experience, not legal advice.
Detect shadow AI, prevent data leaks and enforce rules: with the right security building blocks.
We look at your environment and use cases and recommend what really fits.
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