Promptfoo vs Prompt Refine
Side-by-side comparison · Updated April 2026
| Description | Promptfoo is an open-source tool designed to ensure the security and reliability of LLM (Large Language Models) applications. It offers a comprehensive vulnerability scanner specifically tailored to each LLM product, providing customized probes for detecting PII leaks, unauthorized prompt manipulations, and other critical failures. With capabilities like caching, concurrency, and detailed vulnerability reports, Promptfoo allows developers to build, test, and refine LLM applications efficiently with test-driven development rather than trial-and-error. | Prompt Refine is a sophisticated tool designed to help users conduct prompt experiments across multiple AI models like OpenAI, Anthropic, and Cohere. It allows users to make small adjustments to their prompts and observe varying results, storing each prompt run for future comparisons. The platform supports the organization and sharing of prompt groups, the utilization of variables, and the export of data to CSV for further analysis, eliminating the need for an API key if using provided models. |
| Category | SecurityApplication | Prompt Guides |
| Rating | No reviews | No reviews |
| Pricing | N/A | N/A |
| Starting Price | N/A | N/A |
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| Tags | open-sourcesecurityreliabilityLLMvulnerability scanner | prompt experimentsOpenAIAnthropicCohereprompt adjustments |
| Features | ||
| Open-source | ||
| Customized vulnerability probes | ||
| Detection of PII leaks | ||
| Protection against unauthorized prompt manipulations | ||
| Prevention of jailbreaks | ||
| Detailed vulnerability reports | ||
| Support for multiple LLM API providers | ||
| Local operation without cloud dependencies | ||
| Test-driven LLM development | ||
| Community-supported | ||
| Compatibility with multiple AI models | ||
| Prompt history tracking for detailed comparisons | ||
| Variable creation and reuse | ||
| Organization and sharing of prompt groups | ||
| Data export to CSV | ||
| No API key required if using provided models | ||
| View Promptfoo | View Prompt Refine | |