How does Google Gemini compare to Microsoft Copilot in terms of capabilities, integration, and performance for productivity and enterprise use cases?

Completely agree with Ricardo. The most important question is whether your company is a Google or Microsoft shop for a couple of reasons:

- The delta between the Gemini models and Copilot's underlying models (i.e. OpenAI) in raw performance is in my experience significantly less material than the level of alignment and grounding you'll enjoy thanks to better integration with your company's data.
- The internal corporate frictions / compliance scrutiny you might face at the vast majority of organizations when attempting to introducing AI from a 'different shop' tends to not be worth the hassle. 

In terms of capabilities, Google Gemini has more services than Microsoft Copilot like Real-Time Web Access, Voice Integration and a better Multimodal Input mode. However only if you are using Gemini as part of your Google Workspace you benefit of some integration. In the other hand, Copilot is totally integrated with your Office 365. Therefore the decision should be based more in which workspace you use (Google or Microsoft) - for standalone LLM, GenAI prompts, Gemini can be better than Copilot due to its real-time web access feature.