Google is rolling out new AI features in Gmail, powered by its Gemini AI. The Gemini side panel, now available in Gmail, Google Docs, Drive, and other Google Workspace apps, offers functionalities such as email summarization and drafting replies. The AI-powered 'Summarize this email' button appears beneath the subject line in Gmail, enhancing email management on both Android and iOS platforms. These features, announced at Google I/O, require a paid Gemini subscription. The Gemini AI sidebar also provides proactive prompts and allows users to ask freeform questions, aiming to make inbox management more efficient. It is available on the web and users are advised to double-check important emails summarized by Gemini before sending.