Fliki AI is an excellent AI Video Generator and text-to-speech generator. You can create a video from a powerpoint presentation or a blog article in seconds. It has a wide range of supported languages. The generated videos and voices are generally of great quality, with a few hiccups here and there. The generation speed is good and the UI is easy to understand. And they are making constant improvements as well. It is a bit on the expensive side, but Fliki publishes great promo offers from time to time and you can save quite a bit.