Agentifact assessment — independently scored, not sponsored. Last verified Mar 6, 2026.
Promptfoo
Open-source CLI and library for LLM red-teaming, penetration testing, and vulnerability scanning of AI agents, RAGs, and prompts. Tests for 50+ vulnerability types including prompt injection, jailbreaks, PII leakage, and harmful outputs via declarative YAML configs. Integrates with CI/CD. Community plan free (10k probes/month); paid team and enterprise tiers available.
Viable option — review the tradeoffs
You need to systematically red-team your LLM agents, RAGs, and prompts to catch prompt injections, jailbreaks, PII leaks, and other vulnerabilities before production.
Comprehensive coverage of common LLM attacks with solid detection rates; free tier limits to 10k probes/month; enterprise adds reporting/remediation but community lacks RBAC/team features.
You want automated evals and model comparisons in your CI/CD to ensure prompt/model reliability without manual testing.
Fast local runs with clear pass/fail reports; excels at structured output validation but requires YAML tuning for complex business logic.
Free tier probe limits
Community plan caps at 10k probes/month; heavy CI/CD or large-scale testing requires paid team/enterprise tiers.
Community lacks enterprise security
Open-source version misses RBAC, detailed reporting, and on-prem deployment; use Enterprise for teams needing audit trails or air-gapped scanning.
Promptfoo specializes in security/red-teaming; LangSmith focuses on general observability/tracing.
Pick Promptfoo when security testing (jailbreaks/injections) is your priority over full-stack tracing.
Choose LangSmith for production monitoring, debugging, and end-to-end LLM app observability.
Trust Breakdown
What It Actually Does
Promptfoo tests AI apps like chatbots and agents for security flaws such as prompt injections, jailbreaks, and data leaks using simple config files. It automates these checks in your development pipeline to catch issues early.
Open-source CLI and library for LLM red-teaming, penetration testing, and vulnerability scanning of AI agents, RAGs, and prompts. Tests for 50+ vulnerability types including prompt injection, jailbreaks, PII leakage, and harmful outputs via declarative YAML configs. Integrates with CI/CD.
Community plan free (10k probes/month); paid team and enterprise tiers available.
Fit Assessment
Best for
- ✓llm-evaluation
- ✓red-teaming
- ✓model-comparison
- ✓ci-cd-integration
Score Breakdown
Protocol Support
Capabilities
Governance
- audit-log