Anthropic Secures $65 Billion Funding Surpassing OpenAI in Market Valuation

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ByGreg Sanders

May 31, 2026

Anthropic has closed a massive Series H round valuing the company at $965 billion, signaling a shift in the competitive landscape for artificial intelligence dominance and market power.

The landscape of artificial intelligence underwent a seismic shift this week as Anthropic closed a $65 billion Series H funding round. This massive influx of capital brings the company’s post-money valuation to $965 billion, effectively leapfrogging OpenAI’s last reported valuation of $852 billion. The deal, which many analysts view as the final private funding milestone before a highly anticipated initial public offering, signals that institutional investors are increasingly betting on Anthropic’s safety-oriented architecture as the dominant standard for corporate and industrial applications.

The funding round was co-led by a coalition of heavyweights including Altimeter Capital, Dragoneer, Greenoaks, Sequoia Capital, Capital Group, Coatue, and D1 Capital Partners. The sheer appetite for the round was evidenced by reports that at least one institutional investor pledged $5 billion simply to secure a meeting with Anthropic’s Chief Financial Officer, Krishna Rao. Beyond the lead investors, the cap table now includes a diverse array of global capital, ranging from GIC and Temasek to Blackstone, Brookfield, and Fidelity Management & Research. This broad institutional backing suggests a consolidation of financial power around a few select AI entities capable of meeting the immense capital requirements of the sector.

Strategic infrastructure partners played a critical role in the transaction, highlighting the deep integration between AI developers and the hardware supply chain. Samsung, SK Hynix, and Micron joined the round, ensuring that Anthropic remains tethered to the physical components necessary for scaling intelligence. Furthermore, $15 billion of the total round consisted of previously committed capital from hyperscalers. This includes $5 billion from Amazon, which had been announced in April as part of a broader strategic alliance. Amazon has indicated it could invest up to $20 billion more in the future, tied to specific performance milestones, further cementing the role of Amazon Web Services as a primary backbone for Anthropic’s operations.

Coinciding with the financial news, Anthropic released its Claude Opus 4.8 model on May 28, 2026. This new iteration is optimized for complex coding and agentic tasks, with a specific focus on self-correction and focus. Available via the Claude Platform and major cloud providers, the model is priced at $5 per million input tokens and $25 per million output tokens. The company also announced plans to release Claude Mythos in the coming weeks. Mythos, a more powerful model previously held in limited release due to cybersecurity and safety concerns, represents Anthropic’s attempt to balance raw computational power with the “interpretability” research that its founders claim is essential for avoiding catastrophic AI failures.

From a market perspective, Anthropic’s growth appears to justify the astronomical valuation. The company reported that its run-rate revenue crossed $47 billion earlier this month, driven largely by enterprise adoption of its Claude Code tools. Internal projections suggest a 130% revenue surge is on the horizon, which would bring the startup to its first operating profit. This financial trajectory is a rarity in the high-burn world of AI development, where compute costs often outpace early adoption. Brad Gerstner, founder of Altimeter Capital, noted that the momentum positions Anthropic to lead the next phase of innovation, particularly among the world’s most demanding organizations that require high-reliability systems.

While the scale of these investments is unprecedented, they raise significant questions about market competition and corporate accountability. With hyperscalers like Amazon and Google providing both the capital and the essential cloud infrastructure for these models, the line between independent innovation and corporate subsidiary continues to blur. As Anthropic prepares for the public markets, it faces the challenge of maintaining its principled stance on safety while satisfying the growth demands of a trillion-dollar valuation. The battle for AI supremacy is no longer just about code; it is an arms race of capital, infrastructure, and institutional influence.

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