PROMPTMETHEUS · Prompt Engineering IDE

Promptmetheus is an integrated development environment for building and refining prompts for large language models. It lets you assemble prompts from modular components such as context, instructions, task definitions, examples, and primers, then test and optimise them across different conditions. The platform is designed for anyone creating prompts regularly: developers, researchers, product teams, and content creators working with LLMs. You can work privately or share workspaces with colleagues for real-time collaboration, track costs, and export results for analysis. The tool supports multiple LLM providers and comes with both free and paid options.