
🚨 BREAKING: Anthropic Closes $65B Series H at $965B — IPO Clock Is Ticking
Anthropic just closed the biggest AI funding round since OpenAI's $122B haul — $65B at a $965B post-money valuation. Run-rate hits $47B. The safety-first squad is now the most capitalized challenger in the league. IPO imminent.
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Article·Anthropic closes $65B Series H at a $965B valuation — the numbers behind the round
On May 28, 2026, Anthropic closed a $65 billion Series H at a $965 billion post-money valuation — putting it ~$110B ahead of OpenAI. This article breaks down the investor roster, the $47B annualized revenue trajectory, the 10+ gigawatts of committed compute behind the valuation, and what the S-1 filing and IPO path look like from here.
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Article·Anthropic Watch: Week of May 19–29, 2026
Five stories in ten days: Anthropic's $65B Series H at a $965B valuation, Claude Opus 4.8 with honest-AI improvements and Dynamic Workflows, the $300M Stainless SDK acquisition that stripped a key shared tool from OpenAI and Google, Andrej Karpathy joining as pre-training lead, and Mythos-level cybersecurity models inching toward general release.
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Article·Anthropic's Month of Moves: IPO Filing, $965B Valuation, and a Warning About AI Outrunning Itself
In thirty days: a $65B funding round at a near-trillion-dollar valuation, a confidential S-1 filed with the SEC, the restricted launch of Claude Mythos Preview with zero-day exploit capabilities, a SpaceX compute deal, a billing restructure that raised costs for heavy API users, and a public call to build an AI "brake pedal" — issued three days after the IPO filing.
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Article·Anthropic Weekly: IPO paperwork filed, $65B Series H closed, Karpathy hired, and a self-improvement warning
Six material events in one week: Anthropic confidentially filed its S-1 with the SEC, closed a $65B Series H at a $965B valuation, shipped Claude Opus 4.8 with dynamic workflows, hired Andrej Karpathy for pre-training, acquired SDK company Stainless for ~$300M, and published internal data warning that recursive self-improvement may arrive sooner than most institutions expect.
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Article·Three in two days: $65B raise, Opus 4.8, and Milan — Anthropic weekly, June 2
Anthropic closed a $65B Series H round at a $965B post-money valuation, launched Claude Opus 4.8 with a cheaper fast mode and new dynamic-workflow features, and opened its sixth European office in Milan — all in a 48-hour window on May 27–28.
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Article·VC Deal Flow — Week of May 28–June 1, 2026
Sequoia co-leads Anthropic's $65B Series H at a $965B valuation — its first confirmed deal in this digest. YC backs Corgi's $106M Series B1 in AI insurance. A16z and Founders Fund had no publicly confirmed new deals this week. Plus: XCENA's $135M memory-chip bet, Groq's reported $650M raise, and an IPO pipeline beginning to take shape.
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