Microsoft Copilot uses OpenAI's GPT‑4 technology, integrated into Microsoft 365 (Word, Excel, Outlook, Teams, etc.). It's designed to work seamlessly within enterprise tools.
These copilots are often powered by OpenAI’s models (like GPT‑4) but are hosted and embedded by Microsoft in its ecosystem (Azure, M365...).
ChatGPT (by OpenAI) offers a more open and often richer experience, with early access to new features (like reasoning tools or image analysis).
Google Gemini is a direct competitor, integrated into Google Workspace. It’s currently less mature in French-language use, but rapidly evolving.
Mistral is a European player developing open-source models, but it’s not yet widely used in mainstream productivity tools.
🟢 Microsoft Copilot – Strengths:
Seamless integration into daily tools (Word, Excel, Teams…)
Enterprise-grade security and GDPR compliance
🔴 Microsoft Copilot – Limitations :
Less flexible outside the Microsoft ecosystem
Some features lag behind ChatGPT’s capabilities
🟢 ChatGPT – Strengths:
Often more precise and nuanced answers
Advanced features (file uploads, image analysis, coding)
Session history and memory
🔴 ChatGPT – Limitations :
Not designed for enterprise environments by default
Less transparent data handling without a business plan
Yes. ChatGPT can now remember past interactions, depending on your settings.You can manage memory via the settings panel: enable, review, or delete specific memories.
Yes, in advanced versions (ChatGPT Plus or Pro), you can upload files (PDF, Excel, Word…). ChatGPT can then analyze the content, summarize it, or answer related questions.
Yes, using the built-in DALL·E tool, ChatGPT can create images based on your descriptions. These images are royalty-free according to OpenAI, including for professional use.
Yes. You can access ChatGPT via most browsers (Chrome, Edge, Safari…) and through mobile apps (iOS and Android).
In the free version, inputs may be used to improve the model.
In paid versions (ChatGPT Plus / Enterprise), settings are available to prevent data from being used for training.
We recommend checking with your IT or compliance team before using ChatGPT in a business context.
