Wardstone vs Prompt Armor
Y Combinator-backed LLM security startup
About Prompt Armor
Prompt Armor (Y Combinator W24) is an LLM security startup specializing in third-party AI risk assessment and prompt injection detection. Their platform monitors AI vendors for security risks, tests for indirect prompt injection vulnerabilities, and provides AI Detection and Response (AIDR) with customizable detectors.
Feature Comparison
Key Differences
Why Choose Wardstone
- Transparent pricing with generous free tier
- Comprehensive public documentation
- Lower latency: sub-30ms vs <200ms
- No sales process required to get started
Prompt Armor Pros
- Y Combinator backed (W24)
- Modern architecture with API access
- Enterprise focus with custom policies
- Threat intelligence features
- Active development
Prompt Armor Cons
- Newer company, less established
- Enterprise pricing requires contact
- Documentation requires authentication
Migration Guide
Switching from Prompt Armor to Wardstone? Follow these steps for a smooth transition.
Run parallel evaluation
Test both solutions with your attack corpus to compare detection rates.
Compare pricing and features
Wardstone offers transparent pricing with a free tier for evaluation.
Choose based on results
Select the solution with better detection rates for your use case.
The Verdict
Prompt Armor is a newer entrant with promising features and Y Combinator backing. Wardstone offers comprehensive coverage and transparent pricing.
Prompt Armor is best for:
Enterprise teams evaluating newer LLM security vendors
Related Comparisons
Ready to try Wardstone?
See how Wardstone compares in your environment. Test with your own prompts in the playground.