Based on the Metering Logic for AI Center I have run the Training pipeline 7 times last month and total duration was around 34 hours. So the AI units used for AI Center should be around 208. But it shows that we have used 1697 units in AI Center.
This is presumably the cost of providing the ML skill.
The following applies to Document Understanding Classic Projects or Projects in AI-Center:
If a skill is provided (i.e. usable), AI units are billed on an hourly basis. For example, an activated GPU costs 20 AI units per hour.
I recommend checking the projects in the AI Center (AI Center → Project → ML Skills → Skill in status “Available”? → AI Units (Hourly). Stop not used skills and maybe reduce the hardware costs (“Modify current deployment”):