Prompt
Engineering
IDE
Forge better prompts for your
LLM-powered applications, agents,
and workflows.
Forge better prompts for your
LLM-powered applications, agents,
and workflows.
Promptmetheus breaks prompts down into LEGO-like blocks for better composability, e.g. Context โข Task โข Instructions โข Samples (shots) โข Primer. You can play with different variations for each section and systematically fine-tune your prompts for minimal cost and maximum performance.
The Prompt IDE includes a range of tools to evaluate your prompts under various conditions. For instance, Datasets enable rapid iteration with different inputs, while completion Ratings and the respective visual statistics help gauge output quality.
End-to-end performance and reliability of prompt chains (agents) depend heavily on the accuracy of each prompt in the sequence. Errors can compound and compromise the final output. Promptmetheus can help you optimize each prompt in the chain to consistently generate great completions.
In addition to private workspaces for each user, Team accounts offer shared workspaces that enable prompt engineering teams to collaborate in real-time on their projects and develop a shared prompt library for LLM-augmented apps, services, and workflows.

Compose structured prompts from sections and rapidly iterate through different variations.
Define variables at project or prompt level to keep recurring details flexible and consistent.
Set up custom evaluators and automatically validate each completion against the specified constraints.
Test your prompts with 150+ cutting-edge LLMs and fine-tune model parameters for optimal results.
Organize prompts, datasets, and completions into projects and track relevant statistics on the dashboard.
Use datasets to test with dynamic context and simulate user data or retrieved content.
Rate completion quality and visualize results broken down by model and used variants.
Estimate inference costs for completions based on different models, inputs, and configurations.
Trace every change in your prompt-design workflow with detailed versioning and changelogs.
Surface hidden patterns and correlations to increase efficiency during the prompt design process.
Sync changes to your prompt library in real-time with other devices and team members.
Export prompts and completions in .txt, .csv, .xlsx, or .json format.
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Subscriptions do not include a budget for inference, you need to provide your own API keys.
For Enterprise plans and special requests, please get in touch.
What is Prompt Engineering?
What is a Prompt IDE?
How is Promptmetheus different from the playgrounds provided by OpenAI, Anthropic, etc.?
How is Promptmetheus different from other prompt engineering tools?
Is there an API or SDK?
Can I build AI agents with Promptmetheus?
Can I use Promptmetheus together with LangChain, LangFlow, and other AI agent builders?
What is the difference between Forge and Archery?
What is an AIPI?
Does Promptmetheus integrate with automation tools like Make, Zapier, IFTTT, and n8n?
If you have any other questions,
please just ask.
We're here to help.