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SIMOSphere AI vs ChatGPT Team
The alternative for German and European mid-market companies carrying GDPR and EU AI Act obligations. Ten criteria, both sides named, including a list of the cases where ChatGPT Team is simply the better fit.
Ten criteria side by side
| SIMOSphere AI | ChatGPT Team | |
|---|---|---|
| Data residency | EU (Frankfurt, Aschaffenburg) or on your own premises | United States by default; EU option for Enterprise |
| EU AI Act | Evidence trail and risk-class tagging out of the box | Not addressed in the product; the customer carries the burden of proof |
| Model choice | Apertus, Mistral, OpenAI, Anthropic, Google, and bring your own key | OpenAI models only |
| Self-hosting | Yes, on your own hardware in your own server room, NUC with Nextcloud | No |
| CRM and ERP connectivity | Through the MCP standard to SAP, Microsoft 365, Salesforce, Nextcloud | Connectors via third-party plugins |
| Price for ten seats | On request, by seat count and token allowance | Roughly USD 25 per user per month, so about USD 250 (as of May 2026) |
| Workspace included | Yes, on every tier | Yes |
| Custom AI teammates | Five ready-made, more through the skill SDK | Custom GPTs |
| Audit logs and SIEM export | Per tenant, exportable as CSV, to S3 or by webhook | Admin compliance API (Enterprise) |
| Vendor lock-in | Open-weight models are exportable, bring-your-own-key can be switched off | Fully tied to OpenAI |
When SIMOSphere AI is the right call
Five situations in which the sovereignty question settles it.
- You process regulated data: banking, health, legal, public sector.
- You want, or are required, to run the system on your own premises.
- You do not want to be tied to a US vendor and want model choice to stay in your own layer.
- You need SAP, Microsoft 365 and Nextcloud connected through an open standard.
- An EU AI Act evidence trail is an obligation, not a bonus.
When ChatGPT Team is the right call
And five situations in which we would steer you away from us.
- You want OpenAI's newest model the day it ships.
- Your data is classified as non-critical and carries no privacy exposure.
- You need image generation, video generation, code interpreter and voice mode out of the box.
- You run no infrastructure of your own and have no plans to start.
- An English interface is enough and German industry vocabulary does not matter.
Common questions
Is ChatGPT Team GDPR-compliant for German mid-market companies?
OpenAI offers a data processing agreement and EU data residency options. How the legal assessment lands depends on your industry, your data classification and how the contract is drawn. In regulated industries such as banking, healthcare and the public sector, US vendors with sub-processors in the United States generally require additional written justification. SIMOSphere AI runs on EU models and can be operated entirely on your own premises, which removes that justification burden.
Can I keep using OpenAI models with SIMOSphere AI?
Yes, with your own key. The key layer forwards requests to OpenAI, Anthropic, Mistral, Google, Cohere or DeepSeek and logs each one per team. You keep OpenAI for non-critical work and route sensitive data to EU models.
We help you decide honestly.
Thirty minutes, no sales pressure. If ChatGPT Team is the better fit for you, we say so.