Base44 Launches Proprietary Language Model to Build Apps, Aiming to Cut Costs

Base44, a company acquired by Wix in June 2025 for $80 million, has launched its own internal language model designed specifically for building applications and web apps using natural language. The model was developed and optimized based on tens of millions of real user interactions on Base44's platform. CEO and founder Maor Shlomo told mako that while Base44 will continue to work with major model providers like Anthropic, OpenAI, and Google, the new model aims to reduce dependence on them by leveraging proprietary data and focusing on Base44’s specific use case.

The model supports complex multi-step interactions, coding tasks, tool usage, runtime management, and server-side operations. According to Base44, it already performs competitively against the foundational models it replaces and is significantly faster than those offered by large labs. The rollout begins on June 30, 2026, and will be available to all users, not just paying customers, with full deployment expected within two weeks.

Base44 operates from the Wix campus and maintains a separate product identity from Wix, although the two companies collaborate closely, sharing technology and expertise, particularly from Wix’s AI-based website builder, Wix Harmony. Shlomo emphasized that the goal is to create the best model for Base44 users by focusing on their relatively structured use cases rather than general-purpose tasks.

Looking ahead, Base44 plans to evolve the model from a coding assistant into a full partner that supports product decisions and marketing efforts. Shlomo envisions the model becoming an integral collaborator beyond just executing coding tasks, enhancing both product development and marketing strategies.