ElevenLabs is hosting an online Conversational Agent Hackathon on July 2, 2025, to celebrate the creation of 1 million agents, offering prizes over $20,000. Participants will have two hours to build a voice agent on the ElevenLabs platform and can submit their creations for both the main ElevenLabs prize and additional partner track bonuses from companies like Exa, Notion, and n8n. The event will be supported via Discord, where technical support and general announcements will be available. The hackathon aims to encourage innovation in various fields such as customer service, education, and healthcare, by leveraging conversational AI technology. Participants are encouraged to register, build their agents during the event, and submit a video demonstration of their work within 24 hours post-event, with winners announced a week later.