Anthropic warns of AI's catastrophic risks ahead of US stock listing

Anthropic has warned that artificial intelligence could pose "catastrophic or existential risks to humanity" as it revealed plans for its blockbuster US stock market listing, expected to exceed SpaceX's record $1.8 trillion initial valuation. The Claude chatbot developer reported $16.3 billion in first-half revenue with losses over $80.7 billion, and will list on Nasdaq under the symbol ANT as the first fully AI-focused company to go public. Its filing cited concerns from policymakers, regulators, and internal staff about advanced AI systems potentially being misused or operating with high autonomy. Founded five years ago by Dario Amodei and others, Anthropic faces competition from OpenAI, which plans its own listing early next year. The company also faces a lawsuit from Elvis Presley's estate over alleged unauthorized use of songs, while detailing risks including reliance on cloud providers and Taiwanese chipmakers.