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Education·Open source (free); cloud features may have pricing·www.promptfoo.dev

Promptfoo

Promptfoo is a library for evaluating the quality of language model prompts, offering automated testing and evaluation metrics to enhance output quality and reduce subjectivity. It integrates into workflows and provides both web and CLI interfaces.

Risk Score
Medium
5/10

Independent assessment across data handling, compliance, security and transparency.

Risk factors

3
  • Integrates into workflows, requiring user data.
  • User data may be used for prompt evaluation.
  • No clear opt-out for training on user data.

Recommendations

4
  • Use self-hosted/local mode for sensitive prompt evaluation
  • Review cloud feature data handling before enabling
  • Suitable for developer use in AI testing workflows
  • Avoid including production PII in test datasets

Data handling

Storage
Local by default; cloud features optional
Retention
Local mode: no retention; cloud: not documented
Training on inputs
Not used for training; developer tool