Claude maker Anthropic has confidentially filed initial paperwork with the Securities and Exchange Commission, taking a step toward a potential initial public offering that could reportedly come as early as late 2026.

The filing sets neither a share count nor a price. 

The move arrives just days after the company closed a $65 billion round that valued it at $965 billion—eclipsing rival OpenAI and cementing its status as the most valuable startup in artificial intelligence.

Anthropic’s most recent round nearly tripled its valuation of $380 billion in roughly three months.

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