Major AI labs like OpenAI and Anthropic cannot legally coordinate on safety standards or development pace due to the Sherman Antitrust Act, which prohibits collusion. This legal barrier is a primary reason they are publicly calling for government involvement, as it would provide the necessary waiver to work together without facing antitrust litigation.

Top AI companies like OpenAI and Anthropic cannot unilaterally slow development, even with safety concerns. They fear that competitors or foreign adversaries would seize an insurmountable advantage, forcing them to seek government-led coordination to pace development safely.

Leaders like Anthropic's Dario Amodei are publicly calling for government regulation and a development slowdown. Critics suggest this is a strategic play to impose costly compliance burdens that only established players can afford, effectively stifling smaller, open-source challengers and solidifying their market dominance.

Legal experts warn that an industry-wide agreement to pause or slow AI development could be interpreted as an 'invitation to collude' under antitrust law. This coordination among dominant firms to limit progress, even for safety reasons, could attract significant legal and regulatory scrutiny.

A significant barrier to voluntary safety pacts among AI companies is antitrust law. An agreement to slow development could be prosecuted as illegal anti-competitive collusion, as it would limit the technology available to consumers. This makes government-led frameworks essential for any coordinated industry action.

Frontier AI labs like OpenAI and Anthropic are not genuinely planning to slow development. Their public calls for regulation serve strategic purposes: virtue signaling, legal cover (CYA), and most importantly, 'monopoly masking'—pretending the market is more competitive than it is to avoid antitrust scrutiny of their emerging duopoly.

Acknowledging their safety plans might be inadequate, leaders from multiple frontier labs have begun to seriously entertain a coordinated slowdown. This represents a major shift, as they also explore legal "safe harbors" to collaborate on safety without triggering antitrust violations, breaking the frame of the current race.

The "Pacing the Frontier" letter, where AI employees ask for government-mandated slowdowns, highlights a prisoner's dilemma. No single lab can afford to slow down due to "competitive pressure" unless all are forced to do so simultaneously through regulation. This coordination problem is why they appeal to an external authority.

Major AI labs like Anthropic and OpenAI cannot legally form agreements to "pace" development without government approval. The Sherman Antitrust Act prohibits such collusion, which could be seen as forming a cartel, even if the stated intention is safety.