Dario Amodei built Anthropic on the premise that someone needed to be the responsible adult in the AI room. In a blog post published on July 27, Amodei addressed Anthropic’s stance on open-weights AI models. His core message: Anthropic has never actually pushed for a blanket ban on open-weights models. Instead, Amodei is advocating for a more surgical approach, one that keeps the US competitive while preventing advanced AI capabilities from flowing freely to adversarial states.

The $30 billion balancing act

Anthropic reported 80-fold annualized revenue and usage growth in Q1 2026. The company was sitting at approximately $9 billion in annualized revenue at the end of 2025. Four months later, it had more than tripled that figure, reaching an annualized run rate of roughly $30 billion by April 2026.

Rather than calling for sweeping restrictions on open-weights models, Amodei outlined a set of targeted measures: export restrictions on advanced chips flowing to China, enforcement actions against industrial-scale model distillation, and mandatory safety testing for any model that hits certain capability thresholds, regardless of whether its weights are open or closed.

The open letter Anthropic wouldn’t sign

In late July, Nvidia, Microsoft, and Meta co-signed an open letter advocating for open-weights AI models. Anthropic didn’t sign it.

Amodei has consistently emphasized national security concerns around advanced AI access by authoritarian states, with China being the obvious primary concern. By anchoring his position in national security rather than purely commercial considerations, he’s making it harder for critics to dismiss Anthropic’s stance as self-serving protectionism.

What this means for the AI investment landscape

Anthropic’s refusal to align with the open-weights consensus creates a meaningful split in how the market values different AI companies. Firms that lean into openness, like Meta with its Llama models, are making a bet that ubiquity drives value. Anthropic is making the opposite bet: that controlled access to the most capable models is where the real premium lives. At $30 billion in annualized revenue, the market is currently rewarding Anthropic’s approach handsomely.

Amodei’s emphasis on chip export controls and anti-distillation measures points toward a regulatory environment that could reshape competitive dynamics significantly. Companies that have already built compliance infrastructure around safety testing would have a structural advantage under such a framework. Anthropic was founded in 2021 by Dario Amodei and several former OpenAI researchers specifically around frameworks such as the Responsible Scaling Policy and Constitutional AI.