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S. 5105

BillFederalSenateIn Committee
A bill to establish the applicability of antitrust laws to the sharing of artificial intelligence frontier model risks, and for other purposes.
About This Bill
Committee
Latest Action · July 23, 2026
Read twice and referred to the Committee on the Judiciary.
Congress
119th (2025–2027)
Introduced
July 23, 2026
Cosponsors (1)
0D 1R
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Summary

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The Collaboration on Adversarial Threats and Security Risks Act creates a limited exemption from antitrust laws to allow competing artificial intelligence companies to share information and coordinate with each other to address serious AI security risks. These risks include theft or weaponization of AI by foreign adversaries, AI systems that could facilitate development of weapons of mass destruction, threats to critical infrastructure, and loss of human control over AI systems. Companies can share information voluntarily for security purposes, or they can coordinate to delay or limit AI development and deployment if they first notify the Department of Justice's Antitrust Division with details about the specific risks and scope of the restriction. The exemption does not apply to traditional anticompetitive practices like price-fixing or market allocation, and the Attorney General retains authority to seek court orders blocking actions that either fail to meet the bill's requirements or would actually increase overall AI security risks.

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