What is AI product liability?

AI product liability applies when an AI product causes injury, psychological harm, or death through defective design, inadequate safety measures, or failure to warn. In May 2025, a federal court ruled that AI chatbot output qualifies as a product, allowing traditional product liability claims to proceed against AI companies.

Can I sue an AI chatbot company if my child was harmed?

Yes. Families may pursue wrongful death, product liability, and negligence claims against AI chatbot companies whose products cause psychological harm, self-harm, or death. Courts have allowed these claims to proceed under strict liability for defective design, failure to warn, and state consumer protection statutes.

Who is liable when an autonomous vehicle causes a crash?

Liability may extend to the vehicle manufacturer, the developer of the autonomous driving software, sensor and component suppliers, and the entity operating the vehicle. Massachusetts applies strict liability to defective products, meaning plaintiffs need only prove the product was defective and caused harm, not that the manufacturer was negligent.

What damages are available in AI product liability cases?

Available damages may include compensation for physical injury, emotional distress, medical and psychological treatment costs, lost income, wrongful death damages, and, under Massachusetts Chapter 93A, treble damages and mandatory attorney fees for unfair or deceptive practices in the design or marketing of AI products.

Can AI medical device errors support a product liability claim?

Yes. AI medical devices that produce incorrect diagnoses, dosing errors, or treatment recommendations may be defective under strict liability and negligence theories. Claims may be brought against the device manufacturer, the software developer, and the healthcare provider that deployed the system without adequate oversight.

What should I do if an AI product caused injury or harm?

Preserve all evidence, including chat logs, device data, event records, and communications with the company. Document all injuries and obtain medical or psychological treatment. Do not delete or uninstall the product. Consult an attorney to evaluate claims before the company updates or retrains the AI system, which may destroy critical evidence.

AI Product Liability

Defective AI products that cause injury, psychological harm, or death may give rise to civil claims under Massachusetts and federal law.

In May 2025, a federal court ruled that AI chatbot output is a product, not protected speech, allowing wrongful death and product liability claims to proceed against Character.AI and Google. 1

Legal Framework

In May 2025, a federal court allowed product liability theories to proceed against AI companies, ruling that chatbot output can qualify as a product rather than protected speech. Massachusetts product liability claims typically proceed under implied warranty of merchantability, negligence, and failure to warn. The implied warranty theory functions similarly to strict liability in other jurisdictions but requires careful pleading and proof. Chapter 93A may also apply where the design, marketing, or distribution of an AI product involves an unfair or deceptive practice, and Chapter 93A allows multiple damages and fee-shifting in qualifying cases.

Overview

AI product liability has emerged as one of civil litigation’s most rapidly evolving areas, with claims now reaching developers, deployers, and platform operators across the AI supply chain.

Google and Character.AI agreed in January 2026 to settle multiple lawsuits alleging their AI chatbots contributed to teen suicides and psychological harm. 2

Types of AI Product Liability Claims

Claims arise from a growing range of AI products:

Chatbots and AI companion systems causing psychological harm, emotional dependency, self-harm, or death through defective design or absent safety protocols
Autonomous vehicles and self-driving systems involved in collisions caused by sensor failures, software defects, or inadequate human override
AI medical devices and diagnostic tools producing incorrect diagnoses, dosing errors, or treatment recommendations
AI-driven robotics and drones causing physical injury in workplace, commercial, or consumer settings
AI-powered consumer products, including wearables and smart home devices, that malfunction or expose users to foreseeable harm

Proving AI Product Defects

Plaintiffs may establish defect through four theories:

Design defect: AI system architecture lacked adequate safety features or content moderation
Manufacturing or training defect: AI trained on toxic, biased, or harmful datasets producing foreseeable dangerous outputs
Failure to warn: manufacturer did not disclose known risks to users or guardians
Post-sale failure to remedy: company learned of harm and failed to issue updates, recalls, or adequate warnings

Preserving device data, chat logs, and usage records is critical before AI systems are updated or retrained.

Manufacturer and Platform Liability

Liability may extend beyond the company that designed the AI system. Cloud infrastructure providers that host and serve AI models may face claims where their involvement enabled the harm. Platform operators that distribute AI products to end users owe independent duties under Massachusetts consumer protection law. Third-party vendors that integrate AI components into their products may be jointly liable under established supply chain principles.

What to Bring to a Consultation

Relevant materials include:

Records of interactions with the AI product (screenshots, chat logs, usage data)
Medical or psychological records documenting injury or harm
Communications with the company about the product or its safety features
Device or vehicle data (event logs, error reports, black box records)
Marketing materials, terms of service, and safety disclosures
Prior complaints, regulatory filings, or media reports involving the same product

Documentation is not required. Many cases proceed on expert analysis, internal company documents, and data obtained through discovery.

AI product liability claims in Massachusetts often involve parallel personal injury theories, class action and mass tort litigation, and Chapter 93A consumer protection claims. Civil rights protections apply where a product is marketed to vulnerable users.

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