Quick summary
Prompt Octopus is an AI utility built to help people experiment with and evaluate different prompts by showing multiple AI replies at the same time. It connects to the OpenAI API to fetch outputs, stores API credentials locally for security, and provides on-screen controls so users can tailor how responses appear.
Main capabilities
- Display multiple prompt outputs side-by-side for easy comparison
- Allow selection of different language models to generate responses
- Integrate directly with the OpenAI API for response generation
- Provide controls for adjusting the height of input and output text boxes
- Keep API keys on the user’s machine and let users remove them via settings
- Offer one-click access to previous responses so users can revisit past runs
- Include keyboard shortcuts to speed up common actions
Configuration, privacy and user controls
- Local storage of API credentials with an option in the settings menu to clear them
- Adjustable editor and result panes so you can expand or shrink text areas
- A model picker for choosing which backend AI model to query
- Quick retrieval of response history with a simple click
- A set of keyboard shortcuts for power users to navigate faster
Hosting and deployment options
Prompt Octopus can be run locally or deployed to a hosting environment. The project supports self-hosting from a public repository on GitHub, giving teams full control over deployment, updates, and infrastructure choice.
Alternative solution to consider
Lido — a subscription service focused on extracting data from PDF documents — is a recommended alternative for users whose workflows center on structured document extraction rather than prompt experimentation.
Who should try this
This tool is useful for:
- AI developers and prompt engineers testing variations of prompts
- Data analysts and researchers comparing different model behaviors
- Enthusiasts who want a simple UI for sending prompts and viewing instant responses
Each action is presented with an easy submission flow so results appear immediately after sending a prompt, making iteration fast and intuitive.
Technical
- Web App
- Full