Feb 10 : Blackstone is increasing its investment in the Claude chatbot maker Anthropic, raising its stake to about $1 billion at a valuation of roughly $350 billion, a person familiar with the matter told Reuters on Tuesday. AI startups continue to attract heavy funding from global investors, driven by expectations of rapid growth and widespread commercial adoption. The world's largest alternative asset manager is investing an additional $200 million as part of Anthropic's ongoing funding round,