Machine Sizes and Costs

To run processes using serverless robots, you must have the required amount of RUs (robot units) available for the tenant in which the process needs to run.

The amount of RUs that are consumed depends on:

• the type of environment - test environments have lower RU consumption than production environments;
• the size of the serverless robot machine;
• the number of minutes it takes to execute a job.

The following machine sizes are available:

Machine size	Testing RUs/minute 1	Production RUs/minute
Small (1GB)	0.5	1
Standard (2GB)	1	2
Medium (4GB)	2	4
Large (10 GB)	5	10

¹ You must be on the Enterprise, Pro, or Pro Trial licensing plan to use this feature.

Choosing the Machine Size

Because each process has particular needs, you set the machine size in the configuration of a process.

For any cross-platform process, the Cloud Robot - Serverless list is available on the Additional Settings tab when creating or editing a process.

The option is available for all cross-platform processes, which are candidates for being run using serverless robots, but the option has no effect unless it is executed by a serverless robot.

Automatic Machine Size Selection

All your cross-platform processes have the Cloud Robot - Serverless option set to Automatic by default. This setting selects the appropriate machine size for running the process using serverless robots.

The amount of robot units consumed to run the process is based on the machine size and the number of minutes it takes to run.

When automatically choosing the size, the criteria listed in the below table are evaluated in order. As soon as one criterion is satisfied, the corresponding machine size is chosen and the remaining criteria are not evaluated.

Order	Criterion	Machine size
1	Remote debugging job	Medium
2	Process depends on UI Automation OR Process depends on the UiPath Document Understanding activities	Standard
3	Other unattended process	Small