ConlangCrafter Turns AI to Imagining Languages

IEEE Spectrum AI · 3 weeks ago

Researchers at UC Berkeley developed ConlangCrafter, an AI model that generates constructed languages with consistent rule systems and linguistic diversity. The model demonstrated it can be twice as diverse and 70 percent more consistent than general-purpose LLMs like Gemini-2.5-Pro when creating invented languages, and is available free online. The tool could help natural language processing researchers systematically evaluate how linguistic structure affects model performance in ways previously difficult to test.