PromptGuard vs Vigil Guard
PromptGuard
promptguard.coVigil Guard
vigilguard.aiSide by side
| Figure | PromptGuard | Vigil Guard |
|---|---|---|
| Price from | $19/mo | — |
| Free plan | Yes | — |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | — |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 8 | 3 |
| Spec score · LLM Security Tools | 8.9 (#2) | 7.4 (#14) |
| Deployment | The product offers managed cloud, hybrid self-hosting, and air-gapped deployment; air-gapped licences validate offline with a signed key. | Vigil Guard Enterprise deploys with Docker Compose on a Linux x86_64 host and supports fully air-gapped operation with no external calls or telemetry. |
| Integrations | The site lists integrations/providers including OpenAI, Anthropic, Gemini, Azure, Bedrock, Mistral, Cohere, DeepSeek, Groq, HuggingFace, Ollama, and vLLM. | The maker lists integrations with Splunk, QRadar, Sentinel, Elastic SIEM, n8n, LiteLLM, and a Python SDK with REST access. |
| PII protection | Its PII/DLP feature detects and redacts 43 entity types using reversible tokenization. | The platform can redact more than 20 PII entity types before data reaches a model, with replacement, hashing, or masking configurable per API key. |
| Product | PromptGuard is a security layer between an application and its LLM provider that inspects requests before they reach the model. | Vigil Guard is an AI Detection & Response platform that monitors prompts, model responses, and agent actions in real time. |
| Support | Pricing lists community support for Free, email support with a 48-hour response time for Pro, priority support with 24 hours for Scale, and dedicated support with four hours for Enterprise. | Growth includes priority support, while Enterprise includes an SLA and dedicated support. |
| Trial | The pricing FAQ says Free is a permanent tier rather than a time-limited trial; paid plans include a 14-day money-back guarantee. | Each installation includes a 7-day trial with full platform functionality and no feature restrictions or usage limits. |
Plans
PromptGuard
- FreeFree
- FreeFree
- Team$19 a month
- Team$19 a month
- Build$99 a month
- Pro$99 a month
- EnterprisePriced on request
- ScalePrice not published
Vigil Guard
- EnterprisePriced on request
- GrowthPriced on request
- StarterPriced on request
In their own words
PromptGuard
PromptGuard is a security layer between an application and its LLM provider, inspecting requests before they reach the model. It describes 15 detectors across six layers for risks such as prompt injection, jailbreaks, PII, data exfiltration, toxicity, fraud, secrets, malware and tool injection. The product says it detects and redacts 43 PII types using reversible tokenization. Its SDK can automatically instrument supported LLM calls with one initialization call while leaving existing provider code unchanged. Listed providers include OpenAI, Anthropic, Gemini, Azure, Bedrock, Mistral, Cohere, DeepSeek, Groq, HuggingFace, Ollama and vLLM. Deployment options include managed cloud, hybrid self-hosting and air-gapped installations. In zero-retention mode, prompt and response content is not stored; default security events include a shortened preview and content hash. PromptGuard says customer prompts, completions and documents are not used to train, fine-tune or evaluate models. The Free tier is permanent and includes 20,000 scans a month, one API key, one project and 24-hour log retention. Paid plans include a 14-day money-back guarantee, not a trial.
Vigil Guard
Vigil Guard has no write-up on Specifiction yet; its figures are above.