AIAI Governance StackFree kit

Lakera vs Prompt Security

Both compete in Runtime Enforcement & Guardrails. Lakera positions itself as “AI-native security platform guarding GenAI apps against prompt attacks and data loss”, while Prompt Securityleads with “Runtime security for enterprise GenAI usage, applications, and AI agents”. The table below compares what each publishes.

Where Lakera pulls ahead

Security teams needing continuously updated, model-agnostic runtime protection for GenAI apps

Where Prompt Security pulls ahead

Publishes support for GDPR, which Lakera does not. Security teams governing sanctioned and shadow GenAI use while protecting homegrown AI apps and agents

Both map to EU AI Act, NIST AI RMF, so framework coverage alone will not separate them — the decision usually comes down to who operates the tool and how it fits your existing stack.

Lakera
Prompt Security
PositioningAI-native security platform guarding GenAI apps against prompt attacks and data lossRuntime security for enterprise GenAI usage, applications, and AI agents
CategoryRuntime Enforcement & GuardrailsRuntime Enforcement & Guardrails
FrameworksEU AI Act, NIST AI RMFNIST AI RMF, EU AI Act, GDPR
DeploymentSaaS, On-prem, APISaaS, On-prem, API
Built forSecurity, Data Science / MLSecurity, Risk, Compliance
Founded20212023
HeadquartersZurich, SwitzerlandTel Aviv, Israel
OwnershipAcquired by Check Point Software (announced 2025, ~$300M; deal expected to close Q4 2025)Acquired by SentinelOne (announced August 2025, reported ~$250M)
Funding~$30M total; $20M Series A (2024) led by Atomico with Citi Ventures and Dropbox Ventures~$23M total; investors include Hetz Ventures, Jump Capital, Ridge Ventures, Okta, F5
PricingCommercial SaaS / enterprise licensing (free community tier for Lakera Guard)Enterprise licensing / subscription
Key capabilities
  • Lakera Guard real-time input/output screening
  • Prompt-injection and jailbreak detection
  • PII and data-loss protection
  • Content moderation
  • Gandalf-fed live threat intelligence
  • Automated red teaming (Lakera Red)
  • Real-time GenAI usage visibility
  • Policy-based prompt and data controls
  • Sensitive-data leakage prevention
  • Prompt-injection and jailbreak prevention
  • MCP gateway security
  • Model-agnostic coverage across major LLMs
IntegrationsOpenAI, Anthropic, Azure OpenAI, LangChain, Model-agnostic REST APIOpenAI, Anthropic, Google, Browser extensions / proxy, MCP servers, Enterprise SSO/SIEM
Notable customersDropbox, Citi, Microsoft (Gandalf for security training)None published
Best forSecurity teams needing continuously updated, model-agnostic runtime protection for GenAI appsSecurity teams governing sanctioned and shadow GenAI use while protecting homegrown AI apps and agents
LimitationsNow part of Check Point, so roadmap and packaging may shift toward that portfolio; focused on security rather than broad GRC/compliance workflow toolingBeing integrated into SentinelOne, so standalone roadmap may converge with that platform; primarily security-focused rather than a full GRC/compliance suite

Which should you shortlist?

Choose Lakera if security teams needing continuously updated, model-agnostic runtime protection for GenAI apps

Choose Prompt Security if security teams governing sanctioned and shadow GenAI use while protecting homegrown AI apps and agents

Neither is a substitute for a governance program. Whichever you pick, you still need people who can define the policies the tool enforces.

Full Lakera profile →Full Prompt Security profile →

AI Governance Tool Selection Kit

A vendor-comparison worksheet plus EU AI Act, NIST AI RMF and ISO/IEC 42001 requirement checklists — so you can shortlist tools against the obligations that actually apply to you.

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