Anthropic, founded in 2021 by former OpenAI researchers including Dario and Daniela Amodei, has grown to a $20 billion+ valuation through funding rounds backed by Google, Salesforce, and other major investors. The company develops Claude, a leading large language model. As of April 2026, no IPO announcement has been made, though investor and market interest in AI company liquidity events remains strong. This prediction market assesses whether Anthropic will remain private through December 31, 2027. Current market odds price the probability at just 10% for remaining private, implying 90% odds of a public offering by year-end 2027. This pricing suggests market participants expect an IPO within the next 18-24 months, reflecting typical venture capital exit timelines and competitive dynamics in the AI sector. The resolution depends on whether Anthropic files and completes an IPO on a major U.S. stock exchange before the deadline.