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Promptfoo

Open Source
Evaluation Tools
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Test and evaluate prompts with automated red-teaming. Open-source and self-hosted.

Key Features

  • Prompt testing
  • Red-teaming
  • CI/CD integration
  • Side-by-side

Pros

  • Open source
  • Comprehensive
  • CI/CD ready
  • Free forever

Cons

  • Self-hosted
  • Learning curve

Best Use Cases

Prompt engineeringSafety testingCI/CD