Promptfoo
Test, evaluate, and improve your prompts.
Overview
Promptfoo is an open-source CLI and library for evaluating and red-teaming LLM apps. It helps developers build reliable prompts, models, and RAGs with benchmarks specific to their use-case. It also helps secure apps with automated red teaming and pentesting. Promptfoo allows for systematic testing of prompts, comparison of model outputs, and ensuring consistent performance across different scenarios.
✨ Key Features
- Comprehensive LLM Testing
- Multi-Model Comparison
- Advanced Evaluation Metrics
- CI/CD Integration
- Built-In Red Teaming Integration
- A/B Prompt Comparison
- Declarative test cases in YAML
🎯 Key Differentiators
- Developer-friendly with features like live reloads and caching
- Simple, declarative test cases without writing code
- Language agnostic
- Open-source and battle-tested
Unique Value: Brings software engineering practices like testing, versioning, and regression checks into prompt workflows, enabling teams to ship AI-powered apps with confidence.
🎯 Use Cases (4)
✅ Best For
- Used for LLM apps serving over 10 million users in production.
💡 Check With Vendor
Verify these considerations match your specific requirements:
- Not suited for casual or no-code users.
💻 Platforms
✅ Offline Mode Available
🔌 Integrations
🛟 Support Options
- ✓ Live Chat
- ✓ Dedicated Support (NA tier)
💰 Pricing
Free tier: Fully open-source and self-hostable.
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