Build secure AI applications with AI security testing integrated into your development workflow.
Visit WebsiteThe Bottom Line
Entry price
From $50/mo (free plan available)
Biggest pro
LLM eval framework
Biggest con
Learning curve
TL;DR - Promptfoo
- Integrates AI security testing into CI/CD and development workflows.
- Automates context-aware attack generation and provides real-time threat intelligence.
- Offers remediation guidance, continuous monitoring, and specialized solutions for regulated industries.
What is Promptfoo?
Available on: Web
Pros & Cons
Pros
- LLM eval framework
- Open source
- Good for testing prompts
- Active development
- Good documentation
Cons
- Learning curve
- CLI focused
- Newer tool
- Limited features
- Still maturing
Ratings Across the Web
Promptfoo holds an aggregate rating of 4.8 out of 5 from 49 reviews across Capterra, last checked March 18, 2026.
Ratings aggregated from independent review platforms. Learn more
Key Features
Pricing Plans
Free TrialPricing checked Aug 22, 2026
Free
Open source
- Unlimited local evals
- All features
- Self-hosted
- Community support
Cloud
$50/month
Teams
- Cloud hosting
- Team collaboration
- History & sharing
- Email support
Enterprise
null
Large scale
- All Cloud features
- SSO
- SLA
- Dedicated support
Is Promptfoo worth the price?
The pricing for Promptfoo is very generous, especially with a robust free tier offering unlimited local evals and all features.
The Cloud tier at $50/month for team collaboration and cloud hosting is competitive. This pricing structure is best for individual developers and small to medium-sized teams focused on AI security testing.
Hidden Costs & Gotchas
Potential for high LLM API costs
Enterprise tier requires custom quote
No public overage pricing for Cloud
How Promptfoo Compares to Competitors
Compared to dedicated AI security platforms like Lakera Guard or Protect AI, Promptfoo's free and $50/month Cloud tiers are significantly more accessible, as competitors often start at much higher price points or require custom quotes. Its open-source nature also provides a strong advantage over proprietary solutions for initial adoption and local development.
How Promptfoo's pricing compares
At $50/mo, Promptfoo is the most affordable of its 3 direct competitors.
Entry paid plan, monthly. Pricing checked Aug 22, 2026.
Reviews

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Promptfoo FAQ
How does Promptfoo help ensure the security of AI applications?
Which teams benefit most from using Promptfoo?
How is Promptfoo priced?
What kind of limitations should users be aware of with Promptfoo?
Can Promptfoo be integrated into existing development processes?
How does Promptfoo compare to LangSmith for AI application development?
Does Promptfoo support self-hosted deployments?
Source: promptfoo.dev
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