Fostering Access, Innovation, and Responsibility in Artificial Intelligence Act established. Establishes the Fostering Access, Innovation, and Responsibility in Artificial Intelligence Act (FAIR AI Act) that requires a developer of a base artificial intelligence model, as defined in the bill, to clearly and conspicuously disclose, in a manner that is appropriate for the medium of the content and is easily accessible to the user of such model, in the terms of service governing the use of such model, certain elements related to the artificial intelligence system. The bill creates the FAIR AI Enforcement Fund for the purpose of supporting agency enforcement of artificial intelligence system misuse, bias, and workforce disruption. Finally, the bill limits the defenses available in any criminal or civil action against a defendant that is alleged to have developed, modified, or deployed an artificial intelligence system that caused harm to a plaintiff. The bill has a delayed effective date of July 1, 2027.