Abstract: Embodiments herein relate to streamlining the analysis process using a data processor and an LLM. The LLM receives test case results from a diagnostics software tool indicating a fault in the hardware or software of a computing system. The LLM uses data from databases containing historical system data as well as debugging data to identify the issue and provide the most probable cause of the issue. The LLM can analyze the data presented, and determine a ranking of the most probable cause to least probable cause of the detected fault. The LLM can provide this information to the user, as well as potential solution recommendations. The fault analyzer system can validate the solution recommendation from the LLM and update the LLM's parameters accordingly.