Home Markets OpenAI files for US IPO after Anthropic as AI giants head to public markets OpenAI files for US IPO after Anthropic as AI giants head to public markets Andrew M Jun 09, 2026 comments off Tweet on Twitter Share on Facebook Google+ Pinterest Original source: https://www.investing.com/news/stock-market-news/openai-files-for-us-ipo-after-anthropic-as-ai-giants-head-to-public-markets-4731713 artificial intelligence Market Updates OPENAI www.investing.com/news/stock-market-news/openai-files-for-us-ipo-after-anthropic-as-ai-giants-head-to-public-markets-4731713