Performing your first LLM fine-tune on Runpod with Axolotl, and how to host it after
October 12, 2026You can teach an open-weight LLM to text like a specific persona: their slang, their reply length, their humor, even how they write in a roleplay scene, creative writing exercise, or chatbot customer interactions. All it takes is some chat logs (synthetic or real), a few hours of data prep, and a single GPU pod. This guide walks through the whole process on Runpod with Axolotl, from raw messages to a model you can chat with in SillyTavern, KoboldCpp, or text-generation-webui, using two base models: a 27B Qwen model and the 128B Mistral Medium 3.5. Everything here was tested end to end, and every error we hit along the way is in the Troubleshooting section, so you shouldn't get stuck where we did.





























