Amazon to Invest an Additional $5 Billion in Anthropic

Anthropic’s new AI has banks, tech giants and governments scrambling to understand what could change for cybersecurity and the future of the internet. We show why its Mythos model is raising alarms.Source: Bloomberg

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By Matt Day, Rachel Metz, and Shirin Ghaffary

April 20, 2026 at 8:41 PM UTC

Updated on

April 21, 2026 at 3:25 AM UTC

Amazon.com Inc. is investing an additional $5 billion in Anthropic PBC and may inject $20 billion more over time, a deal that strengthens ties in in an increasingly competitive artificial intelligence race.

The deal was struck at a valuation of $350 billion, not including the new funding, Anthropic said. That signals Amazon negotiated more preferable terms than other investors recently. Anthropic clinched a $30 billion funding round in February that valued the San Francisco-based startup at $380 billion, and has since drawn investor offers at a valuation of over $800 billion.