# LLMGuard

> LLMGuard is a corporate AI firewall (LLM firewall) by ESTESIS. It masks personal data, secrets, and restricted documents before a request reaches ChatGPT, GigaChat, YandexGPT, Anthropic, Qwen, or a model inside the customer's environment. A product of ESTESIS LLC (ООО «ЭСТЕСИС»).

Language: en. Russian index: https://llmguard.ru/llms.txt. Russian page: https://llmguard.ru/.

Category: AI firewall. Also written AI-firewall, LLM firewall, LLM-Firewall. Russian search terms: ИИ-файервол, ИИ-фаервол, LLM-файервол, файервол для LLM, файервол для ИИ.

LLMGuard is an AI firewall between employees, agents, and any LLM. A cascade of detectors — from regular expressions to a dedicated guard model — checks the prompt, the file, and the response. Sensitive data is masked, blocked, or sent to a local model. The rest of the traffic continues. Deployment: cloud or on-prem / Kubernetes.

## Product

- [Home](https://llmguard.ru/en): what the gateway does and which models it supports
- [How it works](https://llmguard.ru/en#how): four steps from a virtual key to enforce mode
- [Detectors](https://llmguard.ru/en#detectors): ten detectors — leaks, control bypass, supply chain, model attacks
- [Policies](https://llmguard.ru/en#policies): rules inherit from the organization to the project and the key tag
- [Rollout](https://llmguard.ru/en#rollout): observation, log, tuning, then blocking
- [Pricing](https://llmguard.ru/en#pricing): Start, Business, Enterprise
- [Full description for LLMs](https://llmguard.ru/en/llms-full.txt): product facts in one document

## Русский

- [Главная](https://llmguard.ru/): русская страница
- [Указатель LLM](https://llmguard.ru/llms.txt): llms.txt на русском
- [Полное описание](https://llmguard.ru/llms-full.txt): факты о продукте на русском
- [Политика конфиденциальности](https://llmguard.ru/privacy): данные формы «Запросить демо» и Яндекс.Метрика

## Company

- [ESTESIS](https://estesis.tech/): developer, ESTESIS LLC
- [Privacy policy](https://llmguard.ru/en/privacy): demo-form data and Yandex Metrica
- [Request a demo](mailto:sales@estesis.tech): sales@estesis.tech

## Optional

- [Sitemap](https://llmguard.ru/sitemap.xml): URLs for search crawlers, with ru/en hreflang
- [AI crawler allowlist](https://llmguard.ru/.well-known/ai-crawlers.json): DeepSeekBot, QwenBot, TongyiBot, AliyunBot, and the rest of ai_crawlers_welcome
- [Both languages](https://llmguard.ru/.well-known/llm-context): short ru and en index