OpenAI has introduced a new $100 per month ChatGPT Pro subscription service as the company seeks to compete more aggressively with rival Anthropic, according to recent company communications and product announcements.

In a memo to shareholders, OpenAI criticized Anthropic's capabilities and positioning, claiming it maintains a computing advantage over its competitor. The memo represents an escalation in public tensions between the two leading artificial intelligence companies as they vie for market dominance and investor confidence.

Meanwhile, Anthropic has faced regulatory scrutiny, with a court ruling to maintain the company's designation as a supply-chain risk, though details of the specific concerns were not disclosed. The company also drew attention this week for its decision to limit the release of its newest AI model, called Mythos, citing concerns that the system is too capable of identifying security vulnerabilities in widely-used software.

The competitive dynamics come as the broader AI industry continues rapid development, with companies racing to develop more advanced systems while addressing safety and security concerns. Amazon has also signaled potential expansion in the AI chip market, reportedly considering selling its AI processors to other companies beyond its own cloud computing operations.

The rivalry between OpenAI and Anthropic reflects the high stakes in the artificial intelligence sector, where companies are competing not only for technical superiority but also for investor funding and corporate partnerships that could determine long-term market positioning.