A guide to building long-term compounding knowledge infrastructure. See details on GitHub .

gpt-prompt-engineer

A tool that automates prompt engineering by generating, testing and ranking candidate prompts to find the best-performing prompts.

Overview

gpt-prompt-engineer helps teams and researchers systematize prompt engineering. Given a task description and test cases, it generates candidate prompts, runs them against test cases, and ranks them (e.g. with an ELO-like system) to surface higher-quality prompts.

Core features

  • Candidate prompt generation and batch testing across many test cases.
  • ELO-based ranking to evaluate and surface the best prompts.
  • Support for multiple model backends (GPT, Claude) and optional integrations for logging (Weights & Biases, Portkey).

Use cases

  • Systematic exploration of prompt variations for production or research use.
  • Building prompt libraries to improve application reliability and performance.
  • Prompt optimization for classification or generation tasks.

Technical highlights

  • Notebook-first workflow (Jupyter / Colab) for reproducible experiments.
  • Extensible test-case and evaluation pipeline for automated benchmarking.
  • Lightweight dependencies focused on experimentation rather than production deployment.

Comments

gpt-prompt-engineer
Resource Info
Author Matt Shumer
Added Date 2025-10-02
Open Source Since 2023-07-04
Tags
Prompt Engineering OSS Tool