Led by entrepreneur Sam Altman, OpenAI upended the tech industry with the launch of its AI chatbot ChatGPT in late 2022.

Gemini’s Gems are custom chatbots that stop you from repeating the same prompts. You can now use them in the side panel of ...

If the e-book app on your phone or tablet is overflowing and full of outdated files, use these tools to tidy it up.