Anthropic closed a $65 billion Series H round at a $965 billion post-money valuation, marking a major private financing that may precede a public offering. The financing was co-led by Altimeter Capital, Dragoneer, Greenoaks, Sequoia Capital, Capital Group, Coatue, and D1 Capital Partners, with participation from institutional investors including Baillie Gifford, Blackstone, Brookfield, D.E. Shaw Ventures, DST Global, and Fidelity Management & Research.

Strategic partners and prior commitments

Strategic infrastructure partners Samsung, SK Hynix, and Micron joined the investment round. The $65 billion total incorporates $15 billion of previously committed capital from hyperscalers, including a $5 billion investment from Amazon announced in April. Reporting earlier in the fundraising process indicated heavy investor interest, with one institutional backer reportedly offering up to $5 billion for a meeting with Anthropic’s CFO.

Product updates and revenue momentum

Anthropic said the new capital will be allocated to safety and interpretability research, expanded compute capacity for Claude, and scaling products and partnerships. The announcement coincided with the release of Claude Opus 4.8, a model positioned to improve agentic task performance, advanced coding capabilities, and self-correction and honesty features. The company has also been developing models comparable to its specialized cybersecurity model Mythos, which has seen limited release due to safety considerations.

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Recent disclosures point to rapid commercial growth. Anthropic reported that run-rate revenue surpassed $47 billion earlier in the month, and media coverage has suggested the company anticipates a substantial revenue increase that could push it toward its first operating profit. Altimeter Capital’s founder and CEO Brad Gerstner credited Claude’s innovations with driving large-scale adoption among demanding enterprise customers.

Competitive and market context

Anthropic’s round comes amid intense competition in private AI financing. OpenAI completed a $122 billion funding round in March at an $852 billion post-money valuation. Other high-profile technology companies pursuing public listings and large capital raises, such as SpaceX following its merger with xAI, underscore the broader market’s scale and ambition.