Thanks, @Universeb. One region-specific detail: Databricks lists DeepSeek V4.1 Flash in ap-northeast-2 as requiring cross-Geo routing, with availability also dependent on GPU capacity.

Could your account admin check Account Console > Workspaces > your workspace > Security and compliance? "Enforce data processing within workspace Geography for Designated Services" needs to be off to allow cross-Geo processing. Please only change it if your data-residency policy permits.