[OpenAI Investor Altimeter Plans to Raise Over $3 Billion in Private Equity] According to Jinse Finance, on November 10th, Altimeter Capital Management, a major investor in OpenAI and Anthropic, is raising a series of new funds for its private equity investment business. According to securities filings and sources familiar with the matter, the company plans to establish a $2.5 billion venture capital fund to invest in late-stage, pre-IPO companies. Altimeter is also discussing raising approximately $800-900 million for a new venture fund that will invest in a more diversified portfolio of young startups. Sources say that Altimeter has previously participated in funding rounds for several late-stage companies, including OpenAI and Anthropic, through its previous growth fund (which raised $1.6 billion last year) and an expansion fund of $1.5 billion. (Jinshi)