Side-by-side comparison · open source
Guardrails.ai vs promptfoo
What we have checked about each, line by line. Every value shows where it came from and when we last confirmed it.
Open Source
Guardrails.ai
Learn about Guardrails AI and how it helps build reliable AI applications
Open Source
promptfoo
Test your prompts, agents, and RAGs. Red teaming/pentesting/vulnerability scanning for AI. Compare performance of GPT, Claude, Gemini, DeepSeek, and more.
Checked facts
Line by line
| Measure | Guardrails.ai | promptfoo |
|---|---|---|
| Latest version | Not checked yet | 0.125.1 (for 25 Oct 2026) |
| GitHub stars | Not checked yet | 25,466 |
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