Base44, the Wix-owned AI app-building platform, has begun rolling out Base 1, a proprietary model designed for turning natural-language prompts into production applications.

Wix said the model is already in production and serving users on Base44. The company described the launch as part of a move toward a more vertically integrated stack that includes data, infrastructure, model training, and deployment. Base44 says the model was trained and optimized with a dataset generated from tens of millions of real user interactions on its platform.

The launch is notable because many app-building and coding-agent startups still depend heavily on frontier models from larger AI labs. Base44 is positioning Base 1 as a way to lower dependence on outside providers while improving latency, cost, and application-specific behavior over time.

Base44 founder and CEO Maor Shlomo wrote that training a model is "the most direct path" toward improving the product for builders. The company has not released detailed benchmark results, so claims about model quality should be treated as early and company-reported.

The broader signal is that developer-tool startups are moving beyond orchestration layers. As inference cost and reliability become product constraints, more platforms are likely to experiment with specialized models tuned on their own workflows and user data.