Valuation doubled to 350 billion in half a year! Blackstone (BX.US) invested an additional 200 million, increasing its total stake in Anthropic to 1 billion dollars.

According to informed sources, global asset management giant Blackstone Inc. recently significantly expanded its capital footprint in the AI unicorn company Anthropic through a series of increased holdings. According to the latest news, Blackstone Inc. (BX.US) has added approximately $200 million in investment in the current large-scale financing round of Anthropic, raising its total stake in this strong competitor of OpenAI to the $1 billion level. It is understood that Anthropic is the developer of the Claude AI model, and due to strong investor demand, its initial $10 billion fundraising target has more than doubled. Representatives from Blackstone Inc. and Anthropic have declined to comment. This round of financing has not yet been officially completed, and the timing and specific terms may still change. This round of financing has caused a huge stir in the capital market, mainly due to Anthropic's highly expansive valuation growth rate. After this round of funding is completed, Anthropic's post-investment valuation has soared to $350 billion. Compared to the $183 billion valuation in the F round of funding in September 2025, the company has achieved nearly double its value in just six months. From an investment perspective, Blackstone Inc.'s investment this time has a distinct structured characteristic, with funds primarily allocated through its Blackstone Private Equity Strategies Fund (BXPE). As a semi-liquid fund mainly aimed at qualified individual investors and retail channels, BXPE's significant investment in Anthropic signifies that top alternative investment opportunities are penetrating into a wider wealth management market. In previous reports, Anthropic has received at least $1 billion in funding from Coatue Management, the Singapore GIC, and Iconiq Capital in this round of fundraising, as well as up to $15 billion in investment from strategic investors NVIDIA Corporation (NVDA.US) and Microsoft Corporation (MSFT.US). It was reported earlier on Tuesday that Abu Dhabi MGX is set to reach an agreement to join this round of financing. As a key supporter of OpenAI, Blackstone Inc. has successfully positioned itself as one of the largest non-venture, non-sovereign investors in Anthropic through this investment. At the same time, OpenAI is simultaneously advancing another groundbreaking AI financing negotiation that could reach up to $100 billion in scale, and both companies are also preparing for their first public offering simultaneously.