I tried Gemini’s new ‘Gems’ feature to create my own custom AI fitness coach — here’s what happened

Google is continuing with its Gemini offensive, rolling out the model to anyone without an account, using it to upgrade Google Sheets, and letting it summarise your documents for free.

Now, it’s turning its attention to more personal AI models, with its Gem feature, which allows custom GPT-style companions, rolling out for all users — even free ones.

While I was tempted to create a gaming Gem, I’ve already written why Microsoft’s AI Copilot on Xbox has me fearful for the future of my…