Prompt Security vs SPLX
A side-by-side comparison of Prompt Security and SPLX, two Security tools, drawn from Ignaite's continuously-verified listings.
Compared from listings verified as of
Prompt Security
SecurityRuntime security for enterprise GenAI: shadow-AI visibility, data-leak and prompt-injection defense.
View Prompt SecurityAt a glance
| Attribute | Prompt Security | SPLX |
|---|---|---|
| Category | Security | Security |
| Pricing | PAID | PAID |
| License | Proprietary | Proprietary |
| Deployment (differs) | Hybrid | Cloud |
| Platforms (differs) | Web, API, Browser extension | Web, API |
| Model support | Model-agnostic | Model-agnostic |
| Vendor (differs) | Prompt Security (SentinelOne) | Zscaler |
| Capabilities (differs) |
|
|
The honest brief
Prompt Security
Covers both employee GenAI use (shadow-AI visibility) and homegrown LLM apps in one runtime layer — now backed by SentinelOne.
- Real-time data-leak prevention
- Blocks prompt-injection attacks
- Browser-extension and API coverage
- Part of SentinelOne Singularity platform
- Enterprise, paid-only pricing
- Roadmap tied to SentinelOne integration
- Heavier than a single-purpose API guard
SPLX
Continuous automated red teaming with thousands of domain-specific attack simulations, then turns findings into system-prompt hardening fixes.
- Automated, continuous red teaming
- AI asset discovery and governance
- Runtime protection for live AI apps
- Covers agents, RAG, and MCP servers
- Agentic Radar scanner is open source
- Sales-led, no public pricing
- Enterprise-oriented
- Now folded into Zscaler's platform
- Newer than traditional AppSec tools
When to pick which
Both cover Guardrails, AI security scanning, and Red-teaming.
Pick Prompt Security if you need MCP gateway / registry and Content moderation.
- MCP gateway / registry (secondary capability)
- Content moderation (secondary capability)
Pick SPLX if you need Regulatory compliance.
- Regulatory compliance (secondary capability)
SPLX leans on Red-teaming as a headline capability; Prompt Security treats it as secondary.
- Red-teaming (primary capability)
They also differ on:
- Deployment
- Hybrid · Cloud
- Platforms
- Web, API, Browser extension · Web, API