# Cognex ViDi Licenses

The type of license on the Cognex Security Dongle determines the functionality and performance level of the ViDi tools in both runtime and training operation.

Note: For more information about the ViDi licenses, please consult your Cognex sales representative.

- Base

  The base-level license is not optimized for fast performance. This option works only with a CPU (and is not compatible a GPU). With this option, the tools will only operate in inference mode, and cannot be retrained while the application is deployed.

- Standard

  The standard-level license supports a single GPU (and is not compatible with multiple GPUs). It is broken into the following options:

  - A 1-year Training license, which is used for application development.
  - A Runtime license, with training capability, for deployed applications. With this option, the tools can operate in inference mode, and can also be retrained while the application is deployed.
  - A Runtime-only license, without access to the training capability. With this option, the tools can only operate in inference mode.

- Advanced

  The advanced-level license is for high-speed and/or high-resolution inspection applications. It is available in the following configuration options:

  - A 1-year Training license, which is used for application development, and supports up to four GPUs.
  - A Runtime license, with training capability, for deployed applications. With this option, the tools can operate in inference mode, and can also be retrained while the application is deployed. This option supports up to two GPUs during inference operation.
  - A Runtime-only license, without access to the training capability. With this option, the tools can only operate in inference mode. This option supports up to two GPUs during inference operation.