The defunct feature used to let users search for definitions and online articles about highlighted words and phrases.

Despite charging you more for its new, AI-inclusive plan, Microsoft is actually taking some features away. In an effort to thrust its Copilot AI tool on you, Microsoft Office apps will no longer offer Smart Lookup,

Microsoft’s Copilot chatbot is rolling out the ‘Think Deeper’ feature to all users, including free accounts. It allows Copilot to handle more complex questions, like DeepSeek or ChatGPT’s o1 model. Microsoft AI CEO Mustafa Suleyman announced on LinkedIn that Copilot’s Think Deeper feature is now available for free,

Discover how Copilot’s ‘Think Deeper’ feature enhances AI capabilities, offering free, powerful insights for users

To check how many credits you have left, you can click the little menu icon in the Copilot sidebar in an Office app and then click “AI credit balance.” This will take you to your Microsoft 365 account subscription page, where you can see a running balance of the AI credits you’ve used.