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 tools using natural language. The model was developed and optimized based on tens of millions of real user interactions on the Base44 platform. CEO and founder Maor Shlomo told mako that while the company will continue collaborating with major model providers such as Anthropic, OpenAI, and Google, it aims to reduce dependency on them by leveraging its proprietary data to create the best model tailored to Base44 users' relatively focused use cases.

The new 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 AI labs. The rollout begins on June 30, 2026, and will be available to all users, not just paying customers. Shlomo emphasized that while cost savings are expected over time, the primary goal is to provide users with a superior model choice rather than just reducing expenses.

Base44 operates from the Wix campus and was founded in 2024. The model was developed in collaboration with Wix, leading AI providers, and Nvidia, incorporating expertise from Wix's AI-powered website builder, Wix Harmony. Despite the close cooperation, Shlomo stressed that Base44 and Wix will remain separate products, though they will deepen technological collaboration. Looking ahead, Base44 plans to evolve the model from a coding assistant into a full partner that also aids product decisions and marketing efforts.