The way it works is that you can feed some hints to the programme. Then the AI will think hard and create something that works best for the given parameters and present you with some poetic lines. The program has been created by US-based CopyAI, and is powered by GPT-3 technology.

Source: https://www.news18.com/news/buzz/looking-for-a-valentines-day-present-this-ai-will-write-you-a-romantic-poem-to-rival-shakespeare-3425216.html