# Citeus

> Citeus is a Generative Engine Optimization (GEO) analytics platform. It measures how brands appear in answers from AI models like ChatGPT, Gemini, and Claude, and traces that attention back to the sources that shaped it.

Citeus runs a statistically valid sample of real, brand-agnostic prompts (sourced from real human–LLM conversation datasets, not search-style queries) across major LLMs, and combines visibility, position, sentiment, and relevance into a single metric: Brand Attention Score. It also measures which sources most influence a brand's appearance in AI answers via Citation Weight Score.

Founded by Irina Luchak and Vitaly Gradoboev.

- [Homepage](https://citeus.ai/): value proposition, methodology, pricing, and early-access signup