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Anthropic Raises $65 Billion in Series H Funding at $900 Billion Valuation

Anthropic completed a $65 billion Series H round Thursday that produced a $900 billion valuation. The round surpassed OpenAI's March valuation of $730 billion.

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1 source·May 28, 8:00 PM(21 hrs ago)·1m read
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Anthropic Raises $65 Billion in Series H Funding at $900 Billion Valuationreason.com
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Anthropic announced a $65 billion Series H funding round Thursday that set its post-money valuation at $965 billion. The round was led by Altimeter Capital, Dragoneer, Greenoaks, and Sequoia Capital.

OpenAI raised $122 billion in March at a $730 billion valuation, or $852 billion post-money. Anthropic's new valuation more than doubled its February figure of $380 billion after a $30 billion round.

Anthropic stated the new capital will support safety research and expand computing resources for its Claude model. The company said demand for Claude continues to grow.

Key Facts

$65 billion
Series H funding amount announced May 28
$900 billion
post-money valuation after the round
Altimeter, Dragoneer, Greenoaks, Sequoia
investors in the Series H round
$730 billion
OpenAI valuation after March round

Story Timeline

3 events
  1. February 2026

    Anthropic raised $30 billion at a $380 billion valuation.

    1 source@Forbes
  2. March 2026

    OpenAI raised $122 billion at a $730 billion valuation.

    1 source@Forbes
  3. May 28, 2026

    Anthropic announced a $65 billion Series H round at $900 billion valuation.

    1 source@Forbes

Potential Impact

  1. 01

    Anthropic will allocate additional capital to safety research and computing infrastructure.

  2. 02

    Anthropic's higher valuation may influence terms in future AI startup funding rounds.

Transparency Panel

Sources cross-referenced1
Confidence score75%
Synthesized bySubstrate AI
Word count95 words
PublishedMay 28, 2026, 8:00 PM
Bias signals removed1 across 1 outlet
Signal Breakdown
Framing 1

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