Giskard vs Promptfoo

Giskard is an open-source and enterprise platform for automated red-teaming and evaluation of AI models and LLM agents, detecting vulnerabilities like hallucinations, prompt injections, biases, and robustness issues through continuous scanning and test suites. It differentiates with black-box testing, collaborative workflows for business and technical teams, and integration of domain knowledge for exhaustive, domain-specific tests. Typical buyers are AI engineering, security, and data science teams at enterprises in finance, manufacturing, public sector, and defense deploying production AI systems. The platform supports compliance via GDPR, SOC 2 Type II, and HIPAA features, and was recognized in Gartner's 2023 Market Guide for AI Trust, Risk and Security Management.

Promptfoo is an open-source CLI and library for evaluating LLM prompts, models, RAGs, and agents through automated benchmarks and matrix comparisons, alongside red-teaming for security vulnerabilities like prompt injections, jailbreaks, PII leaks, and insecure tool use. It differentiates via developer-first local execution, CI/CD integration, and modular plugins covering 50+ attack types with community-driven threat intelligence. Targeted at developers and security teams in enterprises (127 Fortune 500 users), it supports self-hosting to avoid vendor lock-in. Enterprise adds collaboration, monitoring, SSO, and compliance dashboards. Acquired by OpenAI in March 2026 for integration into Frontier platform, remains open-source with SaaS/on-prem options.Promptfoo homepagePromptfoo docsPromptfoo pricing