The AI Security and Innovation Act establishes a new Center for AI Security and Innovation within the National Institute of Standards and Technology to help the United States maintain leadership in artificial intelligence research and development. The center will measure risks posed by AI systems to national and economic security, facilitate information sharing between private companies and federal agencies, and develop voluntary standards and best practices for testing and securing advanced AI systems. The bill authorizes $20 million annually for fiscal years 2027 through 2032 to fund the center's operations, which will be led by a director appointed by the Secretary of Commerce within three months of the bill's enactment. The center will evaluate AI security threats, conduct assessments of advanced AI systems developed domestically and by foreign adversaries, and provide recommendations to Congress and the National Security Council on AI policy matters, though it will have no regulatory or enforcement authority.