The bill amends Chapter 9-1 of the General Laws by introducing a new section, 9-1-55, which establishes liability for injuries caused by artificial intelligence (AI). It defines key terms related to AI, including "artificial intelligence," "covered model," "covered model derivative," "developer," and "fine-tuning." The bill outlines the conditions under which developers of covered models or derivatives can be held strictly liable for injuries to non-users. Specifically, liability applies if the injuries are factually and proximately caused by a covered model's conduct that would constitute negligence or an intentional tort if performed by a human, and if such conduct was neither intended nor could have been reasonably anticipated by the user or any intermediary involved in modifying the model.

The bill also includes provisions for rebuttable presumptions regarding the mental state of AI systems in tort cases. It states that if a human would have acted with a certain mental state under similar circumstances, the AI is presumed to have that mental state as well. Additionally, it allows for affirmative defenses for developers, such as proving that the AI met the standard of care applicable to humans or that the injuries resulted from a capabilities failure rather than negligence. The act is set to take effect upon passage.