I make presentation videos of my different products that usually last between 5 to 15 minutes

1. In AI STUDIO, what is the word limit for TEXT to VIDEO?

2. In AI STUDIO, in the test videos, sometimes the lip movement is distorted in relation to the video. Will there be an update to correct this?

3. Can I clone myself to generate text to video?

4. Does the Text to Video option only work with my previous video or does it also work with an image of me?