Prompt Octopus is an AI tool that allows users to compare multiple prompts side by side. With the ability to add an OpenAI API key, prompts can be stored locally in the cache and cleared at any time within the settings. Users can easily change the model type and number of prompts by clicking on the octopus icon.

For those interested in self-hosting, the tool can be hosted on GitHub. Additional features include adding columns with ctrl+b / ⌘+b, adding rows with ctrl+e / ⌘+e, viewing history with ctrl+m / ⌘+m, and adjusting the textbox height from 10% to 50%. Prompt Octopus simplifies prompt generation and response comparison, making it a convenient tool for AI prompt engineering tasks.