Based on your query, I would recommend using Tome AI. This tool uses artificial intelligence to generate interactive narratives such as presentations, outlines, and stories from short prompts. This feature aligns with your need to generate fragments.

The AI-powered storytelling feature of Tome can quickly transform your short prompts into full presentations. This is ideal for generating fragments of content in a streamlined and efficient manner. Additionally, the seamless media integration allows for the addition of images, videos, live product mocks, and 3D prototypes, making the storytelling experience richer and more engaging.

Furthermore, Tome offers responsive layouts that adapt to any screen size, providing an immersive experience across devices. This feature ensures that the fragments you generate can be easily viewed and interacted with on any device.

Lastly, Tome provides starter templates to help you quickly get going with your storytelling. These templates can serve as a starting point for generating fragments, saving you time and effort.

In conclusion, Tome AI's features align well with your need to generate fragments, making it a suitable tool for your requirements.