Attribution
The Attribution page draws the month as a Sankey: source, then service or model, then business line, with an explicit Unallocated node. Flows are gross usage — a net flow can be negative, which means nothing in a Sankey. A charge is assigned to a line by its business_line tag; without one it lands in Unallocated.
Breakdown by dimension
A switcher above the breakdown picks Tag (the business-line view), Service, Region or Category. The non-tag dimensions draw as a treemap — Map, where a tile's area is its cost this period and its colour the change against the previous period — or as share bars under Table. Charges with no value for the dimension read as Other. A Top resources card lists the period's costliest resources.
Service categories
Category uses the FOCUS service categories — Compute, Storage, Databases, Networking, AI and Machine Learning and the rest — the same on every cloud, so Alibaba Cloud's ECS, Volcengine's ECS and AWS's EC2 all count as Compute / Virtual Machines, and Model Studio, Ark and the model providers as AI and Machine Learning / Generative AI. A product no mapping knows yet reads as Uncategorized and shows up as a data health finding.