GuardionAI vs Prompt Inspector
GuardionAI
guardion.aiPrompt Inspector
promptinspector.ioSide by side
| Figure | GuardionAI | Prompt Inspector |
|---|---|---|
| Price from | — | Free |
| Free plan | — | Yes |
| Free trial | Yes | — |
| Open source | — | Yes |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 2 | 5 |
| Spec score · LLM Security Tools | 8.7 (#3) | 8.5 (#5) |
| Documentation depth | Public documentation includes API reference pages, cURL examples, detector descriptions, policy behavior, telemetry schemas and DLP integration guidance. | The documentation site covers architecture, REST use, Python and Node SDKs, MCP setup and open-source deployment. |
| Integrations | The site lists connections including Pinecone, Weaviate, Milvus, Wiz, Prisma Cloud, Microsoft Defender, Orca Security, Cloudflare, LiteLLM, Portkey, OpenAI, Claude, Gemini, AWS, LangChain, LlamaIndex and CrewAI. | The maker lists a REST API, Python SDK, Node.js SDK, MCP server, and agent skills for OpenClaw and Claude Code. |
| Support | The Pay-as-you-go plan lists community support, while Enterprise lists 24/7 priority support and a dedicated security engineer for 30 days. | The homepage lists community support for self-hosted users and dedicated SLA support for enterprise customers. |
| What it does | GuardionAI provides runtime visibility, policy enforcement and evidence for customer-facing, autonomous and coding AI agents. | Prompt Inspector places a real-time security layer between untrusted input and an LLM application or agent. |
Plans
Prompt Inspector
- FreeFree
- FreeFree
- EnterprisePriced on request
- ProPriced on request
- StarterPriced on request
In their own words
GuardionAI
GuardionAI provides runtime security and governance for customer-facing AI, autonomous agents, and coding agents. Its gateway evaluates agent and MCP calls inline and can allow, block, or redact actions before they execute. Data protection features identify personal information and secrets, mask or vault-tokenize them before requests leave an organization, and can restore responses for users. Runtime guardrails detect prompt injection, jailbreaks, harmful content, and unsafe tool calls; they can block, redact, or flag actions. A coding-agent plugin monitors tool calls and can stop destructive commands, secret exfiltration, and unauthorized calls before they run. GuardionAI can operate as an inline gateway or through its API, and the maker says this requires no application rewrites. Listed integrations include OpenAI, Claude, Gemini, LangChain, LlamaIndex, LangGraph, Pinecone, AWS, Google Cloud, and Microsoft Azure. The company says its gateway is encrypted, model providers do not see raw data, and customer data is not used to train its models. It describes the service as GDPR-, HIPAA-, and LGPD-ready, with SOC 2 Type II in progress.
Prompt Inspector
Prompt Inspector has no write-up on Specifiction yet; its figures are above.