Reddit

Reddit operates an online community platform where people submit content, vote and comment on news and discussions. Its communities organize conversations around shared interests. Developers can extend those experiences through Devvit, Reddit’s platform for building interactive games and apps that live on Reddit, as well as custom moderation tools for managing communities.

Founded in 2005 by Steve Huffman and Alexis Ohanian, Reddit emerged from Y Combinator’s first summer batch. Huffman remains co-founder and CEO; after selling the company in 2006, he returned as CEO in 2015. His subsequent tenure has included international expansion, changes to Reddit’s Content Policy and a full site redesign.

Reddit also serves advertisers and AI partners. Its Max campaigns, available to all Reddit advertisers in 2026, automate targeting, creative selection, placements and budget allocation, using AI to predict impression value. In 2024, Reddit’s partnership with OpenAI established access to real-time, structured content through Reddit’s Data API for ChatGPT and other products, alongside collaboration on AI features for Reddit users and moderators.