# AI-Visibility Engine > A SaaS that measures and improves how often AI assistants (ChatGPT, > Claude, Gemini, Perplexity, GigaChat, YandexGPT) cite your brand in > their answers. Outputs a ECHO Index (ECHO, 0-100) and > generates artifacts (Schema.org JSON-LD, llms.txt, MCP manifest) to > increase that visibility. ## What we measure ECHO = 50% citation frequency + 30% sentiment + 20% source authority. Computed per scan run, persisted as a time-series snapshot for trends. ## Providers we probe in parallel - OpenAI (gpt-5, gpt-5-mini) - Anthropic (claude-opus-4-7, claude-haiku-4-5) - Google Gemini (gemini-2.5-pro, gemini-2.5-flash) - Perplexity (sonar-pro, with web search) - GigaChat (Sber, Russian-language first-class) - YandexGPT (Yandex Cloud, Russian-language first-class) ## Docs - /how-it-works: Methodology, formula breakdown, audit flow - /audit/[id]: Public per-brand audit result with ECHO + per-provider matrix - https://github.com/f0q/xeo: Open-source ECHO methodology ## Try it Drop a domain at https://x.aijam.pro and get a free audit in ~30 seconds. No signup. RU and EN UI. RU LLMs covered (GigaChat, YandexGPT) — most Western competitors skip them. ## Contact Phase 1 (Free ECHO Checker) is live. Phase 2 (Paid audit + downloadable artifacts: llms.txt, Schema.org JSON-LD, MCP manifest) is on the waitlist — capture form ships on every completed audit page.