HiddenLayer vs Protect AI
Updated March 9, 2026
Overview
HiddenLayer provides AI security solutions that protect machine learning models from adversarial attacks, model evasion, and tampering. Its platform detects and prevents attacks targeting AI systems in real-time, offering model integrity verification and threat intelligence specifically designed for AI/ML workloads.
Protect AI provides end-to-end AI/ML security covering the entire model lifecycle. Its platform includes model scanning for vulnerabilities, supply-chain security for ML artifacts, runtime threat detection, and policy enforcement. Protect AI helps enterprises secure AI pipelines from development through production deployment.
Strengths and tradeoffs
What each tool does well, and the limitations to keep in mind.
Pros
- Free tier enables evaluation without upfront costs
- Comprehensive coverage across entire ML lifecycle
- Specialized focus on AI-specific security threats
- Strong Series A funding demonstrates market validation
Cons
- Enterprise pricing starts at USD 500/month which may be steep for startups
- Custom pricing model makes budget planning difficult
- Requires sales engagement for detailed pricing and features
- Relatively young company founded in 2022 with limited long-term track record
Pros
- Comprehensive security coverage across the entire AI/ML lifecycle
- Specialized focus on AI-specific threats and vulnerabilities
- Enterprise-grade features including supply-chain security and policy enforcement
- Strong runtime threat detection capabilities
Cons
- No public pricing makes budget planning difficult
- Enterprise-only model may not be accessible for smaller teams
- Requires consultation with sales team for quotes, adding friction to evaluation
- Custom pricing based on deployment scale can lead to unpredictable costs as AI usage grows
Compare HiddenLayer and Protect AI on your own traffic
Respan lets you trace LLM and agent calls across any model or framework, A/B test prompts on production traffic, and route requests across 500+ models through one gateway.