Anthropic has secured a massive $3.5 billion Series E funding round, reaching a post-cash valuation of $61.5 billion. This announcement comes just five weeks after receiving a $1 billion investment from Google.

Lightspeed Venture Partners led the round, with participation from Bessemer Venture Partners, Cisco Investments, General Catalyst, Jane Street, and other investors. The funding exceeds earlier reports that suggested a $2 billion round at a $60 billion valuation.

The Claude developer plans to use the capital to develop next-generation AI systems and expand its global presence. This investment holds particular significance for the music industry, where Anthropic faces ongoing litigation from music publishers over alleged copyright infringement and fair use training questions.

Key developments in the AI landscape:

• The publishers' legal case against Anthropic has been delayed until March 2026
• European opposition continues against proposed "opt-out" systems for AI training
• The EU's AI Act faces criticism for containing opt-out training loopholes
• Sony Music recently led a $16 million Series A investment in Vermillio, a platform designed to help rightsholders detect and monetize their works' use in generative AI

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