There’s no exact answer to this question because the treatment of AI-generated works under copyright law is an open question. Answers may vary depending on the country you live in.
You own the images you create with FlexClip AI Image Generator (text to image) which are subject to you following our Terms. You may use the AI-generated images for any commercial purposes, but this doesn’t mean you are the copyright owner of the images nor have exclusive rights to them. (The reason is presented in the first paragraph.)
Besides, if you use FlexClip AI Image Generator to create recognizable characters or brands (that may be protected by copyright or trademarks) and plan to use them, please get permission from the rights owner first.