Comparison

Arthur Shield vs Lakera Guard

On the evidence we track, Arthur Shield leads this comparison with a composite score of 62/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Machine formatsJSONMarkdownGraphQLor send Accept: application/json
Arthur Shield62
Lakera Guard48
Score
Vioscale score
Arthur Shield62 / 100medium · 56%updating
Lakera Guard48 / 100medium · 55%updating
Pricing
Free tier
Arthur Shield
Lakera Guard
Model
Arthur Shieldfreemium
Lakera Guardfree
Price level
Arthur Shieldhigh
Lakera Guardfree
Starting price
Arthur Shield$60
Lakera Guard
Transparent
Arthur Shield
Lakera Guard
Integrations
Count
Arthur Shield7
Lakera Guard2
Security
Gdpr
Arthur Shield
Lakera Guard
Soc2
Arthur Shield
Lakera Guard
Market
Availability

Capabilities

Feature-by-feature on the axes that matter for ai guardrails. “-” means undocumented, not absent.

Capabilities
Architecture model
Arthur ShieldManaged cloud inline proxy
Lakera GuardManaged cloud inline proxy
Prompt injection and jailbreak blocking
Arthur Shield
Lakera Guard
Inbound pii and credit card masking redaction
Arthur Shield
Lakera Guard
Outbound toxicity and competitor mention blocking
Arthur Shield
Lakera Guard-
Hallucination and topical off brand drift detection
Arthur Shield
Lakera Guard-
Sub 50ms latency guarantees for proxy routing
Arthur Shield
Lakera Guard
Custom regex and deterministic denylist rulesets
Arthur Shield
Lakera Guard
Streaming token interception and chunked eval
Arthur Shield
Lakera Guard-
Rag retrieval chunk poisoning defense
Arthur Shield
Lakera Guard-
Zero data retention and prompt privacy guarantees
Arthur Shield
Lakera Guard-
SOC2 type ii
Arthur Shield
Lakera Guard-
ISO 27001
Arthur Shield
Lakera Guard-
Pricing model
Arthur ShieldFlat enterprise tier
Lakera Guard-

What each one is

The product in its own terms, so the numbers below have context.

Arthur Shield

Leader

An AI governance system that helps teams find all AI agents in their environment, assess their risk, enforce policies, and monitor performance—supporting various deployment models from cloud to on-premises, with compliance features for regulated industries.

Independently observed

Lakera Guard

A cloud-native security platform designed for AI applications that intercepts both user inputs and model outputs to detect and prevent prompt injections, data leakage, jailbreaks, and compliance violations before they reach the LLM.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Arthur Shield

Leader
from $60/moHybridFree tier

Free tier with unlimited evals. Premium SaaS from $60/mo. Custom enterprise pricing.

  • Free SaaSFree
  • Premium SaaS$60/mo
  • Enterprise On-PremContact sales
as of verify ↗

Lakera Guard

FreeFree tier
as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
Arthur Shield
Lakera Guard
Deployment
Cloud / SaaS
Arthur Shield
Lakera Guard
Self-hosted
Arthur Shield
Lakera Guard
On-premise
Arthur Shield
Lakera Guard
Hybrid
Arthur Shield
Lakera Guard

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

Arthur Shield

Leader
7 total
  • OpenTelemetry
  • Snowflake
  • AWS Bedrock
  • Google Vertex AI
  • AWS
  • MCP
  • Claude Code
Independently observed

Lakera Guard

2 total
  • Grafana
  • Splunk
Independently observed

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.