Fixing Error LOADING or RUNNING Model in Topaz Photo

This guide will help you troubleshoot these 2 different errors:

  • Error Loading Model
  • Error Running Model

These errors can be caused by:

  • Missing or corrupted model - which can be resolved
  • or an outdated graphic card driver (Windows only) which can be updated
  • or it can be an incompatible machine that falls under the app's minimum requirements

STEP 1: Verify System Requirements

To troubleshoot this error, please first check that your computer meets the system requirements for Topaz Photo:

If your System meets the minimum requirements for the app, you can skip to Step 2 below.

If your computer graphics card does not meet the system requirements, it would not be a supported machine. The only workaround for underpowered machines is:

  • Open Topaz Photo and click the Processor menu to try the CPU option (in Edit menu*, Preferences, General, AI Processor). Using CPU can be a workaround, however CPU does not replace VRAM and processing on CPU can we slow, will have limitations and issues. Any isssues that remain would not be supported on an underpowered machine.


*Topaz Photo Menu on Mac

Systems that do not meet the minimum requirements are not supported for the app. Underpowered machines will have issues such as: slow processing, problems updating, export failures, crashes, or inconsistent behavior across versions. These types of issues cannot be resolved until the app is used on a supported machine. For more information, please refer to the "FAQ questions section > What if I am under minimum requirements?" which includes steps to gather the necessary files so our team can review and determine if any workarounds may be possible.

STEP 2: Troubleshooting steps

For Windows computers:

  • If your computer meets system requirements, the graphics card driver may need an update. To help verify the date of the last driver update, you will need to obtain your System Profile to check and send this file to help@topazlabs.com and we can send back links to your latest drivers:  

    >> Find your System Profile (Windows)


  • If the drivers are up to date, and error is only occuring on Remove Tool v2, see steps here
  • If the drivers are up to date, and the error occurs on any other models, see link below to fix corrupted models with the link here

For MAC computers:

  1. Reset CoreML folder:
  • If using the new Topaz Photo app, the coreML folder is here: Finder > Applications > Topaz Photo (Right Click + Show Package Contents) > Contents > Resources > models > coreMLCache

  • If using the Discontinued Topaz Photo AI app, the coreML folder is here:

    >> Delete CoreML Cache Folder


  1. If using the app as a plugin, give the host app permissions with the link here


  2. If issues remain, see link below to fix corrupted models with the link here

Contact Support

For issues with any other models that remains after completing all steps above, gather Logs for Support and contact us so we can continue troubleshooting:

  1. Open the app
  2. Go to: Help → Open Logs Folder
  3. Send all files from that folder in an email to: support@topazlabs.com

Please also include: