Cuckoo serves as an AI interpreter tailored for international teams, enabling smooth multilingual interactions across sales, marketing, and support sectors. It quickly adjusts to dialogues of any size, subject matter, and language, significantly boosting communication effectiveness. The setup process for Cuckoo is user-friendly; individuals simply choose their desired languages, invite Cuckoo to participate in meetings on platforms such as Zoom, Google Meet, Slack, and Microsoft Teams, and provide context by sharing relevant keywords and documents. Utilizing sophisticated language models, Cuckoo grasps the overarching themes of discussions and acquires specific technical knowledge from user-provided resources. It offers immediate support for more than 20 languages and is available on both mobile and desktop devices, eliminating the need for complicated setups or prior rehearsals. Cuckoo has been effectively employed in a variety of settings, including team syncs, sales discussions, town hall meetings, and webinars, thereby demonstrating its versatility across a multitude of conversational scenarios. Its capacity to facilitate real-time communication makes it an invaluable tool for diverse teams working in a global environment.