Gray Swan Cygnal
Real-time prompt-injection and jailbreak defense proxy
App Infrastructure
About
Runtime guardrails gateway from Gray Swan AI (CMU AI-safety spinout) that scores every prompt, response, and tool call for jailbreaks and prompt injection, including indirect injection via tool outputs. Deploys as a drop-in proxy — swap the model's base_url and every call gets scored.
Choose Gray Swan Cygnal when…
- •You need runtime defense against indirect prompt injection via tool outputs
- •You want a drop-in proxy rather than an SDK you wire into every call site
- •You're replacing LLM Guard after its 2026-07 archival and want a maintained alternative
Builder Slot
How do you keep your AI safe?Optional for most stacks
Input/output validation, topic controls, and safety rails that ensure LLM responses stay within defined policies
Dev Tools
Not applicable
App Infra
Optional
Hybrid
Optional
Other tools in this slot:
Alternatives to consider (2)
Pricing
✦ Free tier available
Free200K tokens/min, 10M tokens/day
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