Lakera Guard
lakera.aiservicesaas
Lakera Guard is a SaaS service in the Guardrails & Safety layer of the AI stack. Prompt injection and jailbreak detection at the gateway.
By Lattice editorial · Facts verified · method
- licence
- proprietary
- cost
- usage-based
- owned by
- Production & Governance
Verified 2026-09build refuses it from 2027-04
Use Lakera Guard when
Prompt-injection and jailbreak detection at the gateway.
Skip Lakera Guard when
Requests cannot leave your network.
Stops the bad input before it, and the bad output after. — that is what this layer of the stack is answerable for. See the full Guardrails & Safety section for the rest of the options.
Visit lakera.aiCompare with another toolBadge this entry
[](https://lattice.kunjshah.in/guardrails-safety/lakera-guard)Quick answers
- Is Lakera Guard open source?
- No. Lakera Guard is proprietary. It is paid for by usage.
- What are the alternatives to Lakera Guard?
- The closest alternatives to Lakera Guard are Llama Guard and Invariant Guardrails.
Reading on guardrails
Alternatives to Lakera Guard
Listed as an alternative to
- Llama GuardLlama GuardSafety classifier for prompt and response moderation.Use when One classifier covering both prompt and response moderation.Skip when You need domain-specific policy enforcement.Llama-3.1-Community · self-hosted · free
- Invariant GuardrailsInvariant GuardrailsGuardrails as code, enforced inline in the call path.Use when Guardrails as code, enforced inline in the call path.Skip when Self-hosting is a hard requirement.proprietary · managed · usage-based
Also in guardrails
- NeMo GuardrailsNeMo GuardrailsProgrammable rails that constrain conversational flow.Use when Constraining conversational flow with programmable rails.Skip when You need deep semantic moderation — it is not a classifier.Apache-2.0 · self-hosted · free
- Guardrails AIGuardrails AIValidators that check model output against a defined schema.Use when Validators that check output against a schema you define.Skip when You need free-form moderation rather than structural checks.Apache-2.0 · self-hosted · free
- Llama GuardLlama GuardSafety classifier for prompt and response moderation.Use when One classifier covering both prompt and response moderation.Skip when You need domain-specific policy enforcement.Llama-3.1-Community · self-hosted · free
- Microsoft PresidioMicrosoft PresidioPII detection and anonymization for text and images.Use when Detecting and anonymising PII in text and images.Skip when Your data is already pseudonymised at source.MIT · self-hosted · free
- garakgarakScanner that probes models for known vulnerability classes.Use when Probing your own system for known vulnerability classes.Skip when You have no remediation path for whatever it finds.Apache-2.0 · self-hosted · free
- PyRITPyRITMicrosoft's red-team tool for generating and scoring attack prompts.Use when Generating and scoring attack prompts systematically.Skip when You are not authorised to test the target.MIT · self-hosted · free
- Invariant GuardrailsInvariant GuardrailsGuardrails as code, enforced inline in the call path.Use when Guardrails as code, enforced inline in the call path.Skip when Self-hosting is a hard requirement.proprietary · managed · usage-based