Arthur Mensch argues that the core knowledge for training advanced AI models is limited and circulates quickly among top labs. This diffusion of knowledge prevents any single company from creating a sustainable IP-based lead, which is accelerating performance convergence and commoditization across the industry.

Unlike mature tech products with annual releases, the AI model landscape is in a constant state of flux. Companies are incentivized to launch new versions immediately to claim the top spot on performance benchmarks, leading to a frenetic and unpredictable release schedule rather than a stable cadence.

Previously, labs like OpenAI would use models like GPT-4 internally long before public release. Now, the competitive landscape forces them to release new capabilities almost immediately, reducing the internal-to-external lead time from many months to just one or two.

The historical advantage of being first to market has evaporated. It once took years for large companies to clone a successful startup, but AI development tools now enable clones to be built in weeks. This accelerates commoditization, meaning a company's competitive edge is now measured in months, not years, demanding a much faster pace of innovation.

In the fast-evolving AI space, traditional moats are less relevant. The new defensibility comes from momentum—a combination of rapid product shipment velocity and effective distribution. Teams that can build and distribute faster than competitors will win, as the underlying technology layer is constantly shifting.

Marc Andreessen observes that once a company demonstrates a new AI capability is possible, competitors can catch up rapidly. This suggests that first-mover advantage in AI might be less durable than in previous tech waves, as seen with companies like XAI matching state-of-the-art models in under a year.

In the SaaS era, a 2-year head start created a defensible product moat. In the AI era, new entrants can leverage the latest foundation models to instantly create a product on par with, or better than, an incumbent's, erasing any first-mover advantage.

Fears of a single AI company achieving runaway dominance are proving unfounded, as the number of frontier models has tripled in a year. Newcomers can use techniques like synthetic data generation to effectively "drink the milkshake" of incumbents, reverse-engineering their intelligence at lower costs.

The US-China AI race is a 'game of inches.' While America leads in conceptual breakthroughs, China excels at rapid implementation and scaling. This dynamic reduces any American advantage to a matter of months, requiring constant, fast-paced innovation to maintain leadership.