Polis, an open-source platform for finding common ground at scale, has launched Polis 2.0 with enhanced capabilities for millions of simultaneous participants. Originally launched in 2012, the platform has been used by governments in Taiwan, the UK, Finland, Singapore, and the Philippines to facilitate democratic deliberation on complex issues from Uber regulation to climate policy.

The Computational Democracy Project (CompDem) has rebuilt the platform to handle 10-30x increases in participation through cloud infrastructure that can support millions of users. The upgrade includes automated mapping of hundreds of thousands of viewpoints, real-time LLM-generated summaries, and semantic topic clustering using the Embedding Vector Oriented Clustering library from the Tutte Institute for Mathematics and Computing.

Polis 2.0 introduces end-to-end automation for conversation seeding, moderation, and report generation, removing the need for expert facilitators while maintaining human oversight options. The platform now supports multiple input formats including social media posts, workshop transcripts, and voice recordings, with multi-lingual capabilities that automatically translate UI text and statements. The United Nations Development Programme deployed Polis for what it called "the largest online deliberative exercises in history," engaging 30,000 youth across Bhutan, East Timor, and Pakistan.