Stockholm-based Lovable, which lets people build websites and software applications by describing what they want in natural language, raised $400 million in new funding at a $13.3 billion valuation, a sharp jump that puts it among the most highly valued private European technology companies. The company launched commercially in late 2024 and has become one of the most closely watched startups in the so-called vibe-coding category, where natural-language prompts replace or supplement traditional coding for building real applications. The round is notable because it came despite an increasingly crowded field: OpenAI, Anthropic, Google, Microsoft, Cursor and Replit are all pushing AI deeper into software development, yet investors are still willing to fund multiple large players rather than betting the market consolidates around one dominant tool. For people building developer tools or evaluating where to focus, the round is a useful data point that natural-language application creation is being treated as a durable platform category rather than a feature that incumbents will simply absorb. It also underscores a broader shift in who can create software in the first place, since these tools open application-building to designers, founders and non-programmers with limited coding experience. That shift pushes the hard problems downstream, toward maintaining, testing, securing and scaling AI-generated software, which is exactly the kind of infrastructure gap that adjacent startups such as AI-focused CI and code-validation tools are now moving to fill.