New York's synthetic-performer disclosure law imposes a $1,000 penalty for a first violation and $5,000 for each subsequent one. California's SB-1050, effective January 1, 2027, takes a different route entirely — it folds violations into the state's existing false-advertising and unfair-competition framework, where damages are uncapped.

That penalty gap is the hardest number in this story, and it should drive how performance marketers allocate compliance attention between the two states. Richard B. Newman, an FTC defense lawyer at Hinch Newman LLP who analyzed both statutes, notes the laws share a core requirement: advertisers must disclose when an ad incorporates a realistic digital representation of a human that does not in fact exist.

Beyond that shared spine, the statutes diverge in ways that matter for creative and media teams.

What counts as a 'synthetic performer'?

Neither state defines the term the same way. New York's law covers AI- or computer-generated figures — the broader technical scope. California's SB-1050 covers only AI-generated ones, but it reaches audio-only ads, including AI-generated human voices. New York's law does not expressly cover audio.

For affiliate and CPL (cost-per-lead) campaigns running podcast or streaming-audio creative with synthetic voiceovers, that means California exposure without a clear New York counterpart.

How prominent must the performer be?

This is where California narrows sharply. Its law applies only when an ad "prominently" includes a synthetic performer, and the statute defines prominence. A covered use is one where the synthetic performer is:

• "in the foreground and demonstrating or illustrating the product or service";
• "providing or voicing the on- or off-camera narration or commercial message"; or
• "illustrating or reacting to the on- or off-camera narration or commercial message."

New York's law carries no such limitation — it reaches situations where synthetic performers play minor roles. A background AI extra that triggers disclosure obligations in New York may fall outside SB-1050 entirely.

What do the disclosure standards require?

New York requires advertisers to "conspicuously disclose" a synthetic performer's presence. California demands "clear and conspicuous" disclosure — and unlike New York, it defines the terms, stating disclosures must be "difficult to miss." California also provides sample disclosure language, which advertisers should treat as the practical safe-harbor baseline.

That definitional gap cuts in California's favor for predictability. New York's undefined "conspicuously" leaves room for enforcement interpretation.

Who bears liability?

The knowledge standards differ. New York requires actual knowledge of the synthetic performer's use before liability attaches. California has no such requirement.

Newman flags the practical consequence: advertisers in California who rely on ad agencies or other third parties — which includes most affiliate program operators working through networks and publisher partners — must be particularly careful. Under a rev-share or CPA (cost-per-acquisition) model, an affiliate's AI-generated spokesperson could create brand-side liability in California even absent brand knowledge.

What should advertisers do before 2027?

The compliance math favors early action. New York's capped fines ($1,000 first, $5,000 repeat) are painful but bounded; California's exposure runs through statutes with a track record of class-action and AG enforcement.

Expect other states to watch how these two regimes perform, and expect FTC scrutiny of synthetic-media disclosure to compound the state-level risk as both laws move toward active enforcement.