Opera introduced a new web standard called WebAI. It lets users run AI models directly in the browser. WebAI works with many open-weight models, including Google’s Gemma and Apple’s on-device model on Macs. Opera One offers it as an early preview. Opera GX and Opera Neon will get it soon. Users must opt in to use the feature. It keeps data on the user’s device for privacy. Performance depends on the device’s hardware. Developers can add AI features without cloud infrastructure or per-request costs.