One issue with the current AI detection software options is that, due to the characteristics they are looking for, they may flag original, human-created content as being the work of AI.
TurnItIn has been used by instructors since its creation to check student submitted materials for plagiarism.
Because it is a private company, Turnitin has not released their methodologies, meaning they cannot be assessed for bias or other potential issues. They also do not have access to papers and materials through paid sites that students may utilize to purchase pre-written papers. They do offer another product for purchase that attempts to authenticate the authorship of materials, but it is not included in the standard package.
It also regularly flags common phrases as being problematic when they are appropriate topic terms. Examples of flagged content includes phrases such as "climate change," "Oedipus complex," and "obesity in America." Sentences that are commonly constructed using these terms may also be flagged.
The current technology that creates AI generated images is still in development, leading to created images with features that some are able to more easily identify as being created by programs, such as DALL-E. Reverse searches in Google and careful inspection can reveal an AI generated image.