SB 53 is different. It requires companies to implement filtering systems before anyone commits a crime or demonstrates criminal intent. Companies must assess whether their models can "provide expert-level assistance" in creating weapons or "engage in conduct that would constitute a crime," then implement controls to prevent those outputs. That's not punishing distribution to someone you know will commit a crime. It's mandating prior restraint based on what the government defines as potentially dangerous.
Brandenburg already handles this. If someone uses an AI to help commit a crime, prosecute them. If a company knowingly provides a service to facilitate imminent lawless action, that's already illegal. We don't need a regulatory framework that treats the capability itself as the threat.
The "AIs don't have speech rights" argument misses the point. The First Amendment question isn't about the AI's rights. It's about the government compelling companies (or anyone) to restrict information based on content. When the state mandates that companies must identify and filter certain types of information because the government deemed them "dangerous capabilities," that's a speech restriction on the companies.
And yes, companies control their outputs now. The problem is SB 53 removes that discretion by legally requiring them to "mitigate" government-defined risks. That's compelled filtering. The government is forcing companies to build censorship infrastructure instead of letting them make editorial choices.
The real issue is precedent. Today it's bioweapons and cyberattacks. But once we establish that government can mandate "safety" assessments and require mitigation of "dangerous capabilities," that framework applies to whatever gets defined as dangerous tomorrow.