Guardrails AI: Pricing, Tiers and What's Actually Covered
Python framework for LLM validators (PII, profanity, jailbreak, toxicity, custom). Open-source Hub plus a managed Pro tier with observability and VPC deployment.
Pricing tiers
Verbatim from the Guardrails AI pricing page on 2026-06-19. Quote-only tiers are surfaced as such, never with an inferred price.
| Tier | Price | Free allowance | Notes |
|---|---|---|---|
| Open source (Guardrails Hub) | Free / month | All open-source validators | Self-hosted, infrastructure cost on the buyer |
| Guardrails Pro | Quote only | - | Quote only. Managed hosting, observability, enterprise support, VPC deployment. |
Source: https://www.guardrailsai.com/ | Verified 2026-06-19
OWASP LLM Top 10 coverage
What Guardrails AI defends against, as claimed on its product pages and security documentation. Coverage flags are binary: an item is listed only if the vendor names the attack class explicitly.
- LLM01 Prompt injection
- LLM02 Sensitive information disclosure
- LLM03 Supply chain
- LLM04 Data and model poisoning
- LLM05 Improper output handling
- LLM06 Excessive agency
- LLM07 System prompt leakage
- LLM08 Vector and embedding weaknesses
- LLM09 Misinformation
- LLM10 Unbounded consumption
Hidden costs
Beyond the line-item price, every runtime AI guardrail carries operating costs the vendor page does not surface. Plan for these in any board paper.
- Per-call latency overhead. Guardrail check sits in the request path; budget 50 to 300 ms extra per LLM call.
- False-positive remediation. Allocate engineering time to tune policies after every guardrail rule change.
- Logging and retention. Guardrail decisions need to land in your SIEM. See siemcostcalculator.com.
- On-call coverage. Treat AI security alerts like SOC alerts. See securityoperationscost.com.
What Guardrails AI is best for
Python framework for LLM validators (PII, profanity, jailbreak, toxicity, custom). Open-source Hub plus a managed Pro tier with observability and VPC deployment.
Guardrails AI pricing FAQ
Common questions about Guardrails AI, answered from the verified figures above. Every answer restates a value from the pricing table, not an inferred one.
How much does Guardrails AI cost?
Guardrails AI offers Open-source Hub free, Pro is quote-only. Paid tiers, where they exist, are shown in the pricing-tier table above, verified 2026-06-19.
Does Guardrails AI have a free tier?
Yes. Guardrails AI has a "Open source (Guardrails Hub)" tier at no charge, with a free allowance of All open-source validators. See the pricing table above for the paid scopes.
Does Guardrails AI defend against prompt injection?
Yes. Guardrails AI explicitly names OWASP LLM01 prompt injection among the attack classes it covers.