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promptfoo

Open sourceUpdated recentlyPricing may have changed — not yet verified

Open-source CLI for LLM red-teaming, eval matrices and CI gating.

by promptfoo · Primary workflow: Local-first LLM evaluation and adversarial testing in CI

not
scored

No verified editorial score yet. Scores appear only after documented evaluation.

What it is

promptfoo evaluates prompt/model configurations against test cases entirely locally if desired, producing matrices of outputs and scores. Red-team plugins probe injection/jailbreak classes; YAML configs make it pipeline-friendly.

Editorial basis: vendor documentation and public information reviewed by our editors; written originally for this catalog. Hands-on testing has not yet been performed. Last editorial update 2026-08-26.

Editorial assessment

Best for
  • Security-conscious teams avoiding cloud eval
  • Prompt regression gates before deploy
Not ideal for
  • GUI-only stakeholders
  • Managed annotation workflows out of the box
Strengths
  • Runs fully local against your keys
  • Red-team suite covers OWASP LLM threat classes
Limitations
  • CLI ergonomics over polish
  • Reporting simpler than SaaS peers

Hands-on evidence

Vendor information reviewed; hands-on testing not yet completed.

Vendor information reviewed; hands-on testing not yet completed.

When we test this tool ourselves, this section will document the test date, exact scenario, setup experience, example output, integration result and discovered limitations — with reproducibility notes so you can replicate it.

Read our evidence policy →

Pricing

  • Open source

    FreeUnverified

Pricing reflects publicly listed information at research time and is marked unverified until an editor re-checks the vendor’s pricing page. Always confirm on the official site.

Integrations & compatibility

TypeScriptPythonGitHub ActionsGitLab CI
Deployment
CLI, Self-hosted CI
Platforms
Windows, macOS, Linux
Languages / SDKs
TypeScript, JavaScript, Python
API available
Yes
Learning curve
Low
Documentation quality
GOOD
Team fit
Solo, Small team, Mid-size
Support
See vendor

Security, privacy & AI transparency

AI features

Orchestrates third-party LLMs as judges/red-teamers; configuration transparent in repo.

Vendor response

Vendors can respond to listings and reviews through the vendor portal. Responses are moderated and labeled. No response has been received for this listing yet.