ChatGPT, developed by OpenAI Inc., has launched on KakaoTalk, South Korea's leading mobile chat platform, marking the first outcome of the partnership between Kakao Corp. and OpenAI announced in February. Kakao introduced ChatGPT for Kakao, integrating OpenAI’s GPT-5 model into the KakaoTalk interface, allowing users to access it via a new tab. Existing users can sign in with OpenAI credentials, while new users can register with their Kakao accounts. The service offers free and paid tiers, with limited access for free users. It integrates with Kakao Tools, providing access to various services like Kakao Map. Kakao is offering a subscription rebate for the paid ChatGPT Plus plan until December 31 and emphasizes user privacy regarding chat histories and data management. This launch is part of Kakao’s strategy to build an AI-agent ecosystem, which includes the Kanana service currently in beta, utilizing the Kanana Nano model for user assistance. Kakao plans to roll out Kanana across Android devices in the first quarter of next year and has launched PlayMCP for external partners to develop new content. Following the announcement, Kakao shares increased by over 4.5%.