While we currently don't offer Giphy integration out of the box, you can utilize our "AssetSource API" to create this feature on your own. To integrate Giphy with CE.SDK, ensure that you are using "videos" instead of ".gif" files. We do not support ".gif" files. As long as the Giphy API provides "videos," you can use our AssetSource API to customize your video UI.
To get started, you can follow our guide on integrating custom asset sources here.