PromptGuard
7.9#1 in llm security toolsFrom $19 a monthFree planWebAPIExtensionLinux
VisitPromptGuard vs WitnessAI
What both publish
| Fact | PromptGuard | WitnessAI |
|---|---|---|
| Company | PromptGuard is the trading name of PG Tech Ltd, registered in England and Wales, with a registered office in London. | WitnessAI, Inc. lists an address in Mountain View, California; its About page says it was founded but does not state a founding year. |
| Deployment | The product offers managed cloud, hybrid self-hosting, and air-gapped deployment; air-gapped licences validate offline with a signed key. | WitnessAI operates at the network level and says it requires no new SDKs, additional clients, or invasive instrumentation. |
| Integrations | The site lists integrations/providers including OpenAI, Anthropic, Gemini, Azure, Bedrock, Mistral, Cohere, DeepSeek, Groq, HuggingFace, Ollama, and vLLM. | A WitnessAI platform brief lists network connectors for Zscaler, Palo Alto Networks, Netskope, Fortinet, and F5, plus API integration with existing analytics and security systems. |
PromptGuard plans
- FreeFree
- Team$19 a month
- Build$99 a month
- Pro$99 a month
- EnterprisePriced on request
- Scale—
WitnessAI plans
- EnterprisePriced on request
Pick PromptGuard if…
PromptGuard suits teams that want to inspect LLM requests before they reach a provider, with deployment options ranging from managed cloud to air-gapped installation. It may suit teams seeking PII controls or integrations with the listed providers.
Pick WitnessAI if…
WitnessAI is presented for enterprise employees, developers, applications, compliance teams, and AI FinOps. It may suit organizations seeking network-level visibility and controls for AI use.