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TriggerLab vs Promptfoo

Promptfoo is a powerful open-source CLI for LLM evaluation. TriggerLab is a no-code certification platform with signed certificates and compliance mapping. Different tools for different needs.

TL

TriggerLab

No-code platform. Paste your agent URL, run 105+ adversarial tests, get an RSA-signed certificate and compliance report. Built for teams who need to prove their agent is safe to customers and auditors.

PF

Promptfoo

Open-source CLI tool for LLM evaluation. Write YAML configs to define custom test suites, run them locally or in CI, and iterate on prompts. Built for developers who want full control over test authoring.

Feature Comparison

FeatureTriggerLabPromptfoo
Type
Platform (no-code)
CLI tool (code required)
Setup
Paste URL, click test
Write YAML configs
Adversarial tests
105+ built-in
Write your own
Certificates
RSA-2048 signed
None
Compliance mapping
SOC 2 / GDPR / HIPAA / ISO 27001
None
Agent directory
Yes (The Lab)
None
PvP Arena
Yes
None
PDF reports
Yes
None
Embeddable badges
Yes
None
Open source
No
Yes (MIT)
Custom test authoring
Coming soon
Full flexibility
CI/CD integration
API + webhooks
Native CLI
Pricing
Free / $49 / $149
Free (open source)

When to choose TriggerLab

  • You need a certification your customers can verify
  • You want compliance reports for SOC 2, GDPR, HIPAA, or ISO 27001
  • You prefer a no-code approach over writing YAML configs
  • You want 105+ adversarial tests without building them yourself
  • You need embeddable trust badges for your marketing site
  • You want continuous monitoring with automatic re-testing

When to choose Promptfoo

  • You want full control over every test case and evaluation criteria
  • You prefer open-source tools you can self-host and modify
  • You need to test prompt iterations during development, not just production
  • Your team is comfortable writing YAML and running CLI tools
  • You want to integrate testing into an existing CI/CD pipeline with custom logic
  • Budget is a primary concern and you need a completely free solution

The bottom line

Promptfoo and TriggerLab solve different problems. Promptfoo is a developer tool for iterating on prompts and evaluations during development. TriggerLab is a certification platform for proving your production agent is safe, reliable, and compliant.

Many teams use both: Promptfoo in their CI pipeline for prompt regression testing, and TriggerLab for the official certification they share with customers. They complement each other.

Try TriggerLab free

No credit card. No YAML. Paste your agent URL and get your reliability score in minutes.

Run Free Test