Liquid AI’s d1-ultra takes the top spot on Artificial Analysis Decision Index

Liquid AI has a new leaderboard champion, and it won by knowing what it doesn’t know. The company’s d1-ultra model now sits first on the Artificial Analysis Decision Index with a score of 65. It pairs a high non-hallucination rate with lower accuracy, which is a trade-off some businesses will find very appealing. What d1-ultra actually does Liquid AI announced d1-ultra on October 15, 2026. It is a multimodal decision model, meaning it handles both text and images. Instead of generating free-form text, d1-ultra looks at a predefined set of answer options and assigns each one a calibrated probability. Picture a multiple-choice exam where the student also writes how confident they are next to every bubble. Calibration is the key word. A well-calibrated model that says it’s 80% sure should be right about 80% of the time, not 40%. That matters for the use cases Liquid AI is targeting. The company points to tasks like visual defect detection and insurance claim verification, plus policy checks. In those settings, a model that flags uncertainty is useful. Confident cases get automated, and shaky ones get handed off to a human operator. That is the workflow Liquid AI is pitching. Under the...