Comparison
Copilot is powerful if your whole company lives in Microsoft 365, and if you accept that your data is processed by an American company subject to the Cloud Act. Helix takes the opposite approach: the best open-weight models, connected to all your tools, deployed on your infrastructure.
Copilot requires Microsoft 365 licenses and is at its best only in Word, Excel, Teams and Outlook. Your non-Microsoft tools, Notion, Slack, Google Drive, your business applications, stay outside the perimeter.
Copilot relies on OpenAI models served by Microsoft. You cannot choose Claude to analyze a contract or Mistral for local processing: you inherit Microsoft's choice, at its price.
Microsoft is an American company: your prompts, documents and data indexed by Copilot remain legally accessible to US authorities, even hosted in a European Azure region.
The criteria that matter for a European company.
| Helix | Microsoft 365 Copilot | ChatGPT Enterprise | |
|---|---|---|---|
| Location of your data | Your servers or EU private cloud | Microsoft cloud (US company) | OpenAI cloud (US company) |
| Exposure to the Cloud Act | None on-premise | Yes | Yes |
| Self-hosting / air-gapped | Turnkey, in 1 day | Impossible | Impossible |
| Available AI models | The best open-weight models (Llama, Mistral, Qwen, DeepSeek…) | OpenAI via Microsoft | OpenAI only |
| Works outside the Microsoft ecosystem | Yes: Drive, Notion, Slack, business tools… | No, built for Microsoft 365 | Partially |
| Desktop app (Cowork and Code modes) | Yes, data processed within your perimeter | Integrated with Office (US cloud) | App available (US cloud) |
| Secure agents and automations | Yes, with human validation on outgoing actions | Copilot Studio (Microsoft cloud) | OpenAI cloud agents |
| Meeting transcription | Included, Teams, Meet, Zoom or in person | Teams only | Not included |
Comparison made in good faith as of the publication date; vendor offerings evolve. The structural point does not change: an American company remains subject to the Cloud Act, regardless of the hosting location.
Far more than a chat: a complete work platform, with every AI model on the market.
The AI works alongside you directly on your machine: writing, document analysis, spreadsheets, presentations, on your real files, not in an isolated tab.
Code generation and execution in a secure sandbox: scripts, data analysis, prototypes, with nothing more to install.
Build agents that run your recurring processes autonomously and securely, with human validation at critical steps.
Your meetings transcribed, summarized and usable by the AI. On-premise, the audio never leaves your infrastructure.
Drive, Notion, Slack, SharePoint... your data is indexed and searchable by every model, with role-based access control.
The same platform, deployed on your servers or our sovereign cloud in France. Your data never leaves your walls.
Discover all the features, security and pricing of Helix.
No DevOps team or pre-existing AI plan required: we guide you from diagnosis to deployment.
We analyze your current usage, your tools, your regulatory constraints and your priority use cases. You leave with a clear action plan, no commitment.
We install the platform on your infrastructure or our sovereign cloud in France, connect your data and set up your teams. Installed in 1 day.
Training for your teams, technical support with a response within 24 business hours, ongoing maintenance and updates. You are never left alone with the tool.
Copilot is convenient inside Microsoft 365, but it locks you in: it is at its best only in Office, relies on OpenAI models served by Microsoft, and has your data processed by an American company subject to the Cloud Act. Helix connects to Microsoft and to your other tools, with open-weight models deployed on your side. You keep Office, you gain sovereignty.
No. Microsoft remains an American company: the Cloud Act applies whatever the Azure region. Your prompts and indexed documents remain legally accessible to US authorities. Only a deployment on your infrastructure, with no Azure dependency, removes this risk.
Yes, through Cowork mode: the AI works directly on your real files, writing, document analysis, spreadsheets, presentations, from a desktop app, not just in a tab. The difference: it runs with open-weight models on your infrastructure, without requiring Microsoft 365 licenses.
Yes. Helix lets you build agents that run your recurring processes autonomously, with human validation on outgoing actions and audit logs. The difference from Copilot Studio: they run within your perimeter, on open-weight models, without going through Microsoft's cloud.
Copilot requires Microsoft 365 licenses as a prerequisite, then a Copilot subscription per user. Helix deploys on your infrastructure, with no mandatory office-suite license, and brings chat, code, agents and transcription into a single platform. The price is quoted after a free diagnosis.
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