Optimizing a Language Model for Creative Content Generation

A developer is using a large language model to generate creative story prompts. They find that while the generated prompts are grammatically correct and coherent, they are also highly repetitive and predictable, often revolving around the same few themes. To encourage the model to produce a wider range of more original ideas, which modification to the underlying search process would be most effective?

Balancing Exploration and Exploitation in Text Generation