TornadoVM lets Java programs execute on accelerators. llm.c is a plain C implementation of OpenAI‘s GPT-2, the LLM that powered the 1st ChatGPT. Released in fall ‘22, it sparked an AI hype that still lasts. Both are not a perfect fit at first glance, but a Java version of llm.c could make them friends, so I tried to bring them together. Although there was already a Java port of llm.c, I made my own to get (back) into the groove of Java.