kitio.aiPromptfoo vs Lakera
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Promptfoo starts at See pricing page and Lakera starts at See pricing page. Check both pricing pages for current plans.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Config-based test cases
- Model comparison
- Red-team scans
- CI integration
- Web results viewer
- Prompt injection defence
- Data leak prevention
- Agent and MCP security
- Employee AI governance
- AI red teaming
- Low-latency runtime API
| Feature | Promptfoo | Lakera |
|---|---|---|
| Best for | Open-source CLI for testing prompts and red-teaming AI apps | Security platform protecting GenAI apps and agents from prompt attacks |
| Category | Models & APIs | Models & APIs |
| Pricing model | Freemium | Freemium |
| Starting price | See pricing page | See pricing page |
| Free plan | Yes | Yes |
| Made by | OpenAI | Lakera |
| Based in | United States | Switzerland |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Promptfoo starts at See pricing page and Lakera starts at See pricing page. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
2 plans
Community
Free
- Open source
- All LLM evaluation features
- Red teaming (10k probes/month)
- Run locally or self-host
Enterprise
Contact sales
- Reports and continuous monitoring
- Issue tracking and remediation
- Dedicated runner
- Assigned deployment engineer
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Promptfoo
- Free and works with any provider
- Strong security testing
- Fits developer workflows
- Owned by a model vendor now
- CLI-first may not suit everyone
- Enterprise pricing not public
Lakera
- Low-latency runtime checks
- Covers 100+ languages
- Free tier for developers
- Enterprise pricing isn't public
- Adds another service to your AI stack
- Some products are sales-led
Which one should you choose?
Choose Promptfoo if you want:
- Free and works with any provider
- Strong security testing
- Fits developer workflows
Watch out: owned by a model vendor now.
Choose Lakera if you want:
- Low-latency runtime checks
- Covers 100+ languages
- Free tier for developers
Watch out: enterprise pricing isn't public.
Promptfoo vs Lakera FAQ
What is the difference between Promptfoo and Lakera?
Promptfoo: Open-source CLI for testing prompts and red-teaming AI apps. Lakera: Security platform protecting GenAI apps and agents from prompt attacks. Both are models & apis tools.
Is Promptfoo or Lakera cheaper?
Promptfoo starts at See pricing page and Lakera starts at See pricing page. Check both pricing pages for current plans.
Do Promptfoo and Lakera have free plans?
Promptfoo: Yes. Lakera: Yes.
Who makes Promptfoo?
Promptfoo is made by OpenAI, based in United States.
Who makes Lakera?
Lakera is made by Lakera, based in Switzerland.
Which should I choose, Promptfoo or Lakera?
Choose Promptfoo if you value free and works with any provider and strong security testing. Choose Lakera if you value low-latency runtime checks and covers 100+ languages.