by promptfoo · LLM Plugin · ★ 21.1k
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Promptfoo: LLM evals & red teaming promptfoo is a CLI and library for evaluating and red-teaming LLM apps. Stop the trial-and-error approach - start shipping secure, reliable AI apps. Website · Getting Started · Red Teaming · Documentation · Discord Update (March 16, 2026): Promptfoo has joined OpenAI. Promptfoo remains open source and MIT licensed. Read the [company update](https://www.promptfoo.dev/
| Stars | 21,105 |
| Forks | 1,829 |
| Language | TypeScript |
| Category | LLM Plugin |
| License | MIT |
| Quality Score | 50.102/100 |
| Open Issues | 268 |
| Last Updated | 2026-05-10 |
| Created | 2023-04-28 |
| Platforms | claude-code, gemini, node |
| Est. Tokens | ~40471k |
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promptfoo is Test your prompts, agents, and RAGs. Red teaming/pentesting/vulnerability scanning for AI. Compare performance of GPT, Claude, Gemini, Llama, and more. Simple declarative configs with command line and. It is categorized as a LLM Plugin with 21.1k GitHub stars.
promptfoo is primarily written in TypeScript. It covers topics such as ci, ci-cd, cicd.
You can find installation instructions and usage details in the promptfoo GitHub repository at github.com/promptfoo/promptfoo. The project has 21.1k stars and 1829 forks, indicating an active community.
promptfoo is released under the MIT license, making it free to use and modify according to the license terms.
The top alternatives to promptfoo on Agent Skills Hub include phoenix, prompt-optimizer, ChatGPT-Shortcut. Each offers a different approach to the same problem space — compare them side-by-side by stars, quality score, and community activity.