From Halopedia, the Halo wiki
Lumu constructs share a common situation calculus core with AI used in the fields of finance, providing a distinctive cost-benefit approach to decision-making assistance.
Lumu will be one of the new customizable Personal AIs available to players in Halo Infinite multiplayer. Lumu was described as a humorous AI that will help capture objectives in various multiplayer game modes.
Lumu is voiced by the American voice actor Erika Ishii.
List of appearances