Rakuten Viber, through a new global partnership with OpenAI, has integrated ChatGPT-powered tools directly into its messaging app, available globally on iOS and Android with desktop support coming soon. Users can access these features for free without leaving the app, though usage limits apply. The tools include: a dedicated ChatGPT contact and tab for asking questions or getting help; the ability to tag @ChatGPT in private or group chats for suggestions, with only the specific message or recent mentions shared; Image Remix for editing and personalizing photos in 1:1 and group chats; Link Summary to summarize key points from shared articles, blog posts, or documents, enabled by default in all group chats; Chat Summary for a private one-tap summary of a conversation; Polish Messages to rewrite messages for tone and clarity before sending; and Translate Message to break down language barriers. Users do not need a ChatGPT account to start, but can create or log in to one for higher limits.